關於 are you sure回答 ，我們在網路上蒐集到這些相關的討論、資訊與評價

📜 [專欄新文章] Scaling Ethereum 參賽心得

✍️ Johnson

📥 歡迎投稿： https://medium.com/taipei-ethereum-meetup #徵技術分享文 #使用心得 #教學文 #medium

Scaling Ethereum 是一場由 ETHGlobal 所舉辦的線上黑客松，也是我第一次參加與以太坊有關的黑客松活動，這篇文章就來分享一人參賽的過程與心得。

源起

一開始是在 telegram 群組中得知這場比賽的消息，因緣際會之下剛好有人想組隊參賽，於是就在報名截止的前一天一起跟著報名了。

報名的方式除了填一些基本資料外，最特別的是還要 stack 以太幣，也就是要傳送 0.01 顆以太幣給主辦方，規則是必須在比賽的最後，有提交作品的人才能贖回 0.01 顆以太幣，之後看到 meme 頻道有人留言：

When your project is incomplete but you submit to get back stake.

一方面，這確實也會激勵你好好把比賽完成，就算沒做完也要有些成果上去，這也是主辦方秉持的精神，他們認為大家來黑客松相互學習成長，競賽獎金則是其次。

獎金

比賽方式是由 25 個左右的贊助者（sponsor）分別提供獎金，每個 sponsor 都有錄製一段影片，說明怎麼獲得他們的獎金，大部分會要你使用他們開發的工具，或者必須跟 sponsor 在做的研究有關，去實作出創新的作品。可參考：Prizes — Scaling Ethereum

你的專案可以選擇要投入哪個 sponsor 的獎金，一個專案可以投入多個 sponsor 底下，這樣獲獎機會也會比較高。

我選擇的 sponsor 是 zkSync，他們的說明如下：

zkSync is a user-centric zkRollup developed by Matter Labs. It uses zero-knowledge proofs to keep data availability on mainnet to achieve exponentially lower transaction costs. You may have seen us powering projects such as payments and Gitcoin Grants. We are currently rapidly developing zkSync 2.0, which will feature EVM-compatibility in testnet May 2021, soon followed by zkPorter, our new exponential scalability solution.

PrizeszkSync will be awarding their Prizes as follows:
- 1 winner — 4,000 USDC
- 2 winners — 2,000 USDC
- 4 winners — 500 USDC

We encourage builders to utilize zkSync SDK’s, implemented in JavaScript/Typescript and Rust. Prizes will be awarded to projects that make it simpler and easier for non-technical users to use zkSync, other ideas include integrations of current tools such as in Gitcoin Grants and tools for easy mass payments and multi-sigs.

社群互動

這個 hackathon 很棒的地方是他把使用者體驗做的很好。每個人都會有自己的 dashboard 顯示目前專案的進度和一些訊息。

Check-In #1 和 Check-In #2 的階段會要你提供專案的構想，你隨時都可以修改。主辦方會看你提交的資訊，幫助你找到適合的 sponsor，或是給你一些建議，就算是一人參賽也能感受到回饋。

整個賽程期間，社群都是使用 discord 在互動，discord 裡頭有很多頻道，像是基本的大會報告的頻道，或是一些不重要的迷因、閒聊頻道都有。

每個 sponsor 也都有自己的頻道，我就會在 sponsor-zksync 的頻道詢問技術的問題，例如我想問問 zkSync 一些關於專案構想的意見：

Hi there, I want to build a gas fee relayer which make my ERC-20 token transfer without transaction fee, to be more precise, delegating gas payment by another party. I think this is done by GSN https://opengsn.org/ , but maybe it could built on L2 with zkSync? I’m not sure, could somebody give me some advice about this topic?

zkSync 團隊的人回應我：

This is an amazing idea! This can totally be built, as we support batching transactions which can be used for all kinds of creative things such as paying for transaction fees in an erc-20 token. Your idea seems like a combination of that and the gitcoin grants integration. To get started, I suggest you watch the short 10 minute presentation I made on using the SDK and batching. Looking forward to your project!!

在 Check-In #2 的時候，我提交新版的專案構想，有一個欄位是問：「目前專案遇到什麼阻礙？」我的問題應該是被主辦方貼給 zkSync 的團隊，於是 zkSync 的團隊成員就用 discord 私訊我，貼了一些程式碼教我怎麼使用他們的 Javascript SDK，這突如其來的救援也幫了大忙。

除此之外，主辦方每個禮拜都會寄 email 通知一些重要的活動，賽程期間舉辦了四個 Summits 研討會，邀請世界各地有名的以太坊開發者分享議題，主辦方還有一個自己的 TV 網頁，直播所有的線上活動。這些活動都有錄影，可以在 youtube 看到過去所有的演講內容：https://www.youtube.com/c/ETHGlobal/videos

因為我的作品是使用 zkSync 的 Javascript SDK 製作的，好像也只能投稿 zkSync 作為獎金的 sponsor，不過主辦方在最後一個禮拜，也寄 email 告訴我說可以多投稿不同的 sponsors 看看，他依據我的專案構想給我一些適合的 sponsors 作為參考。

不過最後我還是只投稿了 zkSync，有點懶著再看其他 sponsors 的文件，也覺得其他 sponsors 的題目需要花比較大的功夫才能完成，一個人能力有限，就做點簡單的東西就好。

關於我的專案 — Gas Relay Service

在以太坊的世界，每一筆交易都需要額外付一筆交易費，也就是以太坊的 gas fee。

我的專案是讓「收款人」能夠幫「付款人」支付以太坊的手續費。

在黑客松之前，我就想研究「第三方支付手續費」的議題，因此我大部分時間其實都在研究一般的 meta-transactions 是怎麼實作的，有興趣的人可以看看 simple meta-transactions 的原始碼：https://github.com/chnejohnson/simple-meta-transaction

之後我才開始玩 zkSync 的 SDK，並研究怎麼在 Layer 2 實現第三方支付手續費的問題，以下就附上作品連結以及簡單的專案介紹給有興趣的人參考：https://showcase.ethglobal.co/scaling/gas-relay-service-on-zksync

The target is that token sender can choose to find another account to pay for fee. The another account can be (1) the token receiver’s account, (2) sender’s another account, (3) third party’s account.

In this project, I finished the demo, which is the (1) above, that receiver pay gas fee for the sender.

有趣的是，我在研究 meta-transactions 時學到很多智能合約的寫法，結果在最後專案上都沒用到（沒寫到合約的程式），zkSync Javascript SDK 其實很簡單，他們的文件寫得很清楚。最後 Demo 還是用 zkSync 團隊的成品修改來的…XD。

所幸在沒有懂太多技術的前提下完成了這場黑客松的專案，成功贖回了 0.01 顆以太幣。

評審與決選

整個賽程來到最後一個禮拜，主辦方安排兩天的時間進行 Judges，使用 zoom 進行線上研討會，一個人基本上是 7 分鐘，前 4 分鐘播放 Demo 簡報，後三分鐘會有評審問問題。

第一個問題是說：「Demo 中你是使用 zkSync 的錢包網頁去操作，那實際上你做得部分是什麼？」

我就回答我在他們的網頁上加了一顆按鈕，使用他們的 SDK 做出 gas relay 的功能，還有一個後端的 server 去作 relay。

第二個問題大概是問：「什麼樣的情境下會需要由 receiver 幫 sender 支付 gas fee？」

我的回答是，在一般超商購物的情境，消費者通常只支付商品的價格，不會支付額外的交易費，我認為以太坊的手續費應該屬於軟體的營運成本，由賣方支付比較適合。那如果賣方希望手續費的成本是由消費者承擔，可以直接調高商品的價格。

當然，我英文講得零零落落，希望評審有聽懂就是了…

最後一場直播就是 Finale 決選，主辦方選出十二個隊伍，公開再 Demo 一次，以及提供線上觀眾詢問問題，至此整個賽程就差不多進入尾聲。

決選後的不久，主辦方就公布了這次有獲得獎金的隊伍，幸運拿到了 zkSync 頒發的小獎～

zkSync — Matter Labs

- Zeneth — 2000 USDC
- ZeroSwap — 1500 USDC
- Kangaroo — 500 USDC
- Gas Relay Service — 500 USDC

後記

這次的參賽隊伍中，Zeneth 跟我的主題非常相似：
Zeneth — Use Flashbots to enable arbitrary meta-transactions so EOAs can enter L2s without ETH

另一個我覺得有趣的專案是 Alexandria：
Alexandria — A dApp using STARKs to verify aspects of your identity without revealing more than you should

沒想到主辦方 ETHGlobal 下個月又要再舉辦一場黑客松，有興趣的人可以看看：https://defi.ethglobal.co/ ，這次的主題是 De-Fi。

最後，只要有到 ETHGlobal 的 TV 網頁參加 Summit 研討會的直播，就能夠獲得 POAP 勳章，它就是一個酷東西～😋

POAP: Proof of Attendance Protocol

Scaling Ethereum 參賽心得 was originally published in Taipei Ethereum Meetup on Medium, where people are continuing the conversation by highlighting and responding to this story.

👏 歡迎轉載分享鼓掌

My brain does malfunction when a man ask me “where are you?”... Fuss i trappy🌲🌟（翻譯成台語：當你問我在哪裡時，哇頭卡嗡嗡）發揮一下妳的想像力，妳在哪裡?哈

I feel you everywhere, I am sure you can feel me
Our love is unique, as are both of us Our souls found each other. My heart chose you ~💚
（當你男朋友問你在哪裡時?妳可以這樣回答他）

https://youtu.be/vPBIAQxsAz8

Taiwan Can Achieve More,
But It Takes Bilingualism
台灣可成就更高 但需要「雙語國力」

《作者從事與雙語教育相關的工作已斷斷續續30餘年。雙語已成國策，那就身體力行，開始用雙語發表意見吧。歡迎讀者對此形式提供您的意見及指教》

Among all sustaining forces, what Taiwan lacks most is the force of language. When people talk about a country’s competitiveness, most likely the main benchmarks are the military force, wealth force, technology force or even cultural force. The concept of“Force of Language”rarely came into mind. But in fact, linguistic capability is one of the key factors that can make or break a country in the long run , if not in the short.

在所有的可持續力量中，台灣最缺的就是語言的力量。當人們談論國家的競爭力時，通常主要的標竿都是軍事力量、財富力量、技術力量，甚至文化力量，而想都想不到「語言力量」這回事。但事實上，語言表達的能力，遲早也將是國家成敗的關鍵要素之一。

Examples are plenty. Take the tiny country of Singapore as a sample. Its existence and survival rests upon its capacity in applying and managing multi-lingual resources. Without that force of language, it can’t possibly thrive in a geographical setting as complex as this – with Malaysia on the north, Indonesia on the South-West, India to the West, and, particularly, the landmass of China up north. Geography is both a blessing and a curse to the country of Singapore, but its multi-linguistic capacity is a pure blessing. Without it, Singapore would still have been a trading center in that region and there is no way for it to have become one of the worldwide financial centers as today.

例子不勝枚舉，小小的新加坡就是一個樣本。它的生存，基於它運用、管理多重語言資源的氣度和能力。若缺少了這種「語言國力」，新加坡不可能在如此複雜的地理環境下茁壯 – 北有馬來西亞，西南有印度尼西亞，西有印度，尤其遠遠的北方還有中國這樣一塊大陸。地緣對新加坡這個國家既是祝福也是詛咒，但其多語能量則是百分之百的祝福。若非掌握語言國力，新加坡或許還能成為區域的貿易中心，但沒有可能變成今日的世界金融中心之一。

Hong Kong, in the past tense, also benefited tremendously from its bilingualism. By comparison, the mighty city of Shanghai in China will never replace the economic role Hong Kong used to play for China. I remember a sharp comment made by the past Premier of Singapore, Mr. Lee Kuan Yew. Many years ago when visiting Taiwan, he was asked this question by a reporter : “Can you foresee Shanghai replacing Hong Kong one day“? “Never!”was Lee’s reply. “Why?” Here comes the issue of the force of language, “Because I simply can’t see that the Shanghainese can speak better English than the Hong Kong people”. End of discussion.

香港在過去，也大大得利於它的雙語能力。相較之下，中國上海這個巨型城市，永遠也無法取代過去香港對中國的經濟角色。我猶記得新加坡前總理李光耀的一針見血評論。多年前在造訪台灣時，記者問他：「你能預見上海有一天取代香港嗎」？「絕不可能！」李光耀回答。「為什麼呢」？這裡就看出語言的力量了，「因為我根本看不到上海人的英文能力有超過香港人的一天」。討論就此結束。

Taiwan is good at technology as well as in many other aspects. It produces over 50% of the high-end semiconductor chips for the world’s high-end industrial and military uses, and it also designs at least 25% of the chips for world’s daily electronic devices. Which means, should Taiwan’s economic activities be disrupted by a hostile party , or even worse, should the island country fall under a hostile party’s control, as a consequence, the entire world would be affected severely, even to the point of functionally inoperative.

台灣在科技上很行，其他方面也不錯。在世界的高端工業及軍事應用中，台灣生產的高端半導體晶片佔比超過50%。在日常生活的電子設備上，台灣設計的晶片也至少佔比25%。這意味著，若台灣的經濟活動被某個敵意方擾亂，或在更糟情況下台灣這個島嶼國家落入敵意方的控制，後果將嚴重波及整個世界，甚至導致世界在功能上無法運作。

On top of that, Taiwan is ingenious in meeting unconventional demands for outlandish components. The most apparent case would be that of the birth of Tesla. When Elon Musk couldn’t get designers and factories from other parts of the world to risk making his non-heard-of components, he came to Taiwan and found willing and capable suppliers. Without the ingenuity of Taiwan’s able engineers, Tesla’s EV could have been delayed for many more years and might even have missed its first-to-market timing.

此外，台灣在非傳統、奇思妙想的零組件領域也很高明。最顯著的例子就是特斯拉的誕生。當伊隆馬斯克在世界其他地方碰壁、沒有工廠和設計師願意為他冒險製造那些聽都沒聽過的零組件的時候，他來到台灣找到了出路和供應商。沒有台灣的這份高明和工程師，特斯拉的電動車可能延誤多年，甚至失去市場首發的時機。

In the political arena, Taiwan has been firmly placed in the first tier among countries of democracy. To be fair, Taiwanese citizens still stand eager for eliminating the residual, inherited authoritarian elements in its political system; however, from a global standpoint, the mere presence of this remaining endeavor, by itself, proves that Taiwan has already passed the point of no return of an evolving democratic country.

在政治競技場，台灣已經被牢牢放在了民主國家的前列。但還是得公平地說，台灣公民還在熱切得期待把自己政治體制中那些殘留的、繼承來的威權成份加以剷除。然而從全球眼光來看，這種熱切現象的本身，就足以證明台灣作為一個民主還在演化的國家，在道路上已經沒有回頭餘地了。

In any aspect, Taiwan should have received a much higher level of acknowledgement from the international community than what it gets now. It makes people wonder why it didn’t.

無論哪個角度，台灣都應該得到比現在更高的國際認可和關注。這讓人感到奇怪，為什麼不是這樣呢？

Sure, one can blame the “Cut-Taiwan-off-the-World” program that the neighboring CCP (Chinese Communist Party) exercised. But blaming is not productive, not in everyday life nor in politics. We need self-assertive solutions much more than airing complaints.

當然，我們可以歸咎於中共的「切斷台灣的世界聯繫」招數。但是，歸咎往往是不起積極作用的，在生活中如此，在政治上也一樣。自我斷然提出解決方案，遠比時時抱怨要重要的多。

Citizens in Taiwan need to be able to speak out for Taiwan, not waiting for others to speak for it. To speak out to the world, you need languages! Presently, over 90% of the citizens on this island write and speak in just one language : the written Mandarin Character and the spoken Mandarin plus dialects.

台灣公民有必要自己為台灣發聲，而不是只等待第三方替台灣發聲。既然要自己對世界發聲，那就需要語言（國力）！當前，90%的台灣公民只會用單一的語種書寫和表達：書面的華文系方塊字，和華語加上數種方言。

This causes consequences in two-folds. On the political side, when Taiwan citizens shout in Mandarin, only people who understand Mandarin in other parts of the world can know what Taiwan is shouting for. Sadly, 96% of those who understand are under the firewall enclosure in China. Furthermore, Taiwanese messages are being censored, twisted and manipulated by the CCP in order to prevent its subjects from hearing it.

這造成了雙重後果。在政治面，當台灣公民用華語呼喊時，世界上只有聽得懂華語的人知道台灣在呼喊什麼。遺憾的是，96%聽得懂華語的人被鎖在中國的防火牆內。更糟的是，中共為了防止其控制的人民聽懂，持續不斷得堵絕、扭曲、操弄來自台灣的訊息。

On the economy side, although the top-layer of the academics, businessmen and technical elites are all quite proficient with a second language, mostly English or Japanese, the majority of the able engineers and middle managers in Taiwan cannot communicate efficiently enough to bring out their personal or organizational potentials.

在經濟面，雖然頂端的學術工作者、企業家、技術精英都有不錯的外語能力，例如英文或日文，但是大多數的能幹工程師和中層管理者，還無法有效的通過外語溝通以展示他們自身或組織的真實潛力。

It’s such an obvious yet ignored national issue : Taiwan needs bilingualism for its political sustainability and economic prosperity. A thriving bilingualism in Taiwan can be achieved by flipping its mentality towards education, or by changing its attitudes towards “outsiders” and installing a more open-minded immigration policy.

如此明顯的國家級議題卻遭到忽視：台灣的政治可持續及經濟的繁榮，非需要「雙語國力」不可。若想如火如荼的推動雙語國力，有兩條路可走，一是翻轉其對教育之心態，或改變對「外來者」的態度、建立一套更開放的移民政策。

Either way, Taiwan must implement a bold and innovative approach to this “force of language” challenge. And that approach can start today. Are you ready? Yes, I meant YOU！

不論採哪一種方式，台灣對這「語言國力」的挑戰，必須實施一種既大膽又創新的路數。今天就可以開始，你準備好了嗎？沒錯，說的就是你！

* 更多有關台灣之未來，請往 《范疇 前哨預策網》InsightFan.com
* 註冊為免費會員，瀏覽部份熱點議題電子書、觀點及預先的對策
* 註冊為追蹤會員，支持一個永遠獨立、終身不受任何政治體制管
束、推動台灣世界地位、思考人類文明未來的園地

彼らがどんなことを考えてるか、気になりません？
Ever wondered what they think?

💁‍♂️Follow our Instagram as well!💁‍♀️
https://www.instagram.com/bebechan_france/

Subscribe/チャンネル登録: https://bit.ly/2D20Xng
Join our LINE友だち追加: http://nav.cx/6spz5JG
Line ID: @bebechan_couple
FREE LDR Guide【遠距離恋愛 無料ガイドダウンロード】
https://bebechan.net/freeguide

Teddy's Channel https://www.youtube.com/channel/UCzTojQgbHiuAjaub3ePvNKw
Mitsugi's Channel https://www.youtube.com/user/mitsugi321

おっすー！今回の動画はなんと3月上旬に撮影したもの！アップするのこんなに遅くなって本当にごめんなさい！
外国人男性が日本人女性のどんなところに惹かれるのか、恋愛にどんなことを求めているのか、よくフォロワーさんから質問を頂くので、このたび友人を集めてインタビューをしてみました！とても興味深い回答になっています！国際恋愛は難しいものですが、外国人男性の声を参考にすることでさらに幸せな国際カップルになれるかも...！是非楽しんでいただけたら幸いです！

#外人 #国際カップル #国際恋愛

Hi everyone, welcome to a new bebechan video! I often hear Japanese girls wondering what foreigners like about them, what is hard when dating them, or even what foreigners search in a relationship! Well I called a few of my friends and asked them those questions. I’m sure you will be very interested in the answer. International relationships are always difficult, and having more information about foreigners will help you for sure to become a happy international couple! Enjoy!

We are an international married couple from Japan and France, we do videos about couple life and relationships in general. Sometimes giving tips, sometimes doing vlogs, but mostly having fun! Join us! Subscribe! https://bit.ly/2D20Xng

＊私たちは、フランス人と日本人の国際結婚をしたカップルです。恋愛やカップルの日常などを配信しています。たまに英語学習についても。チャンネル登録・高評価頂けたら嬉しいです♡＊


Join us on social media!
その他のSNSはこちら！
▶Instagram: https://www.instagram.com/bebechan_couple
▶Twitter: https://bit.ly/2Go9VKU
▶Facebook: https://bit.ly/2Xn9J5s

Check out these playlists for more content!
プレイリストから好きなトピックをチェック！
⚫ 国際恋愛 International Couple: https://bit.ly/2O7k3id
⚫ 遠距離恋愛 LDR: http://bit.ly/39FdOsv
⚫ 教えてオレちゃん: https://bit.ly/32IQmr2
⚫ その他 : https://bit.ly/2y7onmJ
⚫ 私たちについて: https://bit.ly/2O8x0Zl

-------------------------
↓他の国際恋愛ブロガーさんをチェック！↓

【ハンガリー人夫と日本人妻の国際結婚ブログ】Paprika Purika
https://paprika-puprika.com/
https://www.instagram.com/hanchi6568/?hl=ja

Eternal Hope par Kevin MacLeod est distribué sous la licence Creative Commons Attribution (https://creativecommons.org/licenses/by/4.0/)
Source : http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100238
Artiste : __url_artiste__

周三就有更新视频～哎呀妈呀，这是咋回事儿？

最近MYBY们一直在INSTA和YOUTUBE评论里说他们想要看看更多关于DAYDAY和黄布的日常生活。因为我们就是乖宝宝，所以一定要满足我们家MYBY们！今天就先来一期DAYDAY VLOG～ （因为这是新的IDEA所以也想听听大家的建议和看法。喜欢的话就给我们点赞～这样我们就知道你们想看更多这样的content）

It's time to answer your all's anonymous questions from insta~ You kids are so 直接～?

Our MYBY's have been asking to see more of Dayday and Blair's lives outside of MYBY and because we here at MYBY aim to please, we're going to try out some different style VLOG videos on our channel. The first of these comes from Dayday~ If you like the video make sure you leave a comment so we know you want to see more vlogs on the channel. Turn on notifications so you can get updates for the newest content.

And as always remember to like, comment, forward and subscribe~

JR又來了！這次是當面試官！
老實說，我第一次面試時（非老師工作）就是帶著「零經驗」的履歷去的，
那時真的就是憑著我的「一片真心」打動面試官！（哈哈！😜）
我記得我大致上就是如影片中這樣說的！

稍微解釋一下這堂課你需要做到的步驟：
Step 1: 這一步中沒有給中文字幕，希望藉此能打開耳朵仔細聽，試著理解內容。
Step 2: 第二步的repetition（反覆練習）和imitation（模仿）非常重要，每個人花的時間都會不同，不要覺得花上好多天練習就表示練習沒效率，反而，這會是你發覺自己進步很多、單字記的很熟、句型馬上蹦出來的關鍵！
Step 3: 在這一步驟中，我把我的部分換成靜音，讓你好好展現練習的成果，和JR模擬一場真實的面試喔！

對話全文：
JR: How are you doing this morning?
Cat: I’m doing great. Thank you.
JR: So, tell me something about yourself
Cat: Sure. I started off my career as an English teacher five years ago. I mainly taught Elementary school kids. One of my major duties was to communicate with anxious parents, and to talk to them about their kid’s behavior at school. I believe it took a lot of patience and communication skills to be able to pull it off.
JR: Catherine, you do know this is a marketing company right? Marketing and education are totally different fields. Why do you think you’re qualified to fit in this position as a marcom specialist?
Cat: Well, I’m the person who welcomes challenges. I understand I’m trying to get into a totally different field, however, I’ve always had a passion for digital marketing. In my spare time, I would read books or study articles about content marketing, influencer marketing, SEO and all that. I even worked part time to manage C’s English Corner’s fan page.
JR: Oh, C’s English Corner, that’s very very famous in Taiwan. So, why should we hire you again?
Cat: I don’t have much hands-on experience. But working as an English teacher in the past five years, I’m pretty confident to say that I’m an observant person with flexibility and good communication skills.
I know I am new to this field, but I am willing to take on an entry-level position and work my way up.

--------------------------------------------------------
☛ Facebook: C's English Corner https://www.facebook.com/csenglishcorner/
☛ Instagram: csenglishcorner
☛ 每週四晚上9:00準時發影片喔！

--------------------------------------------------------

其他超實用教學影片：

 【生活休閒英文】#5 六個直白的中翻英錯誤 // 如何選擇練口說管道?
https://goo.gl/PCCMRx

 如何用英文在國外點餐 https://goo.gl/v4pLGm

 如何順利過海關？ https://goo.gl/S1ppYZ

 聽懂機場廣播 https://goo.gl/DJZ8Kw

 我在台灣的自學方法 https://goo.gl/wyUjVc

 旅行英文#9 【住飯店】各種需求英文//如何無形中增加單字量？
https://goo.gl/nQnAuF
----------------------------------------------------------------------
每週四晚上9:00準時發影片喔！
----------------------------------------------------------------------
合作邀約：csenglishcorner@gmail.com