[#字正腔圓] Sail 中間的 diphthong (雙元音) 加上後面的 /l/，是考起不少人的讀音。類似的字有：
sale
fail
veil
whale
大家想一起練練的話，之後也可以拍片講講啊 ;)
[#含英咀華] 英國係航海大國，英文裡面又點少得關於航海嘅idioms（習語）呢！
大家或者知道plain好多時候解平平無奇、平凡。咁plain sailing解咩？
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咪就係非常順利同簡單嘅旅程嘅意思咯！
例句：
The pathway to success, even for geniuses, is by no means plain sailing.
大致就同中文成語「一帆風順」差唔多意思啦！
//'Plain sailing', along with the variants 'smooth sailing' and 'clear sailing', which are more common in the USA than elsewhere, is a nautical phrase that has the literal meaning of 'sailing that is easy and uncomplicated'. All of these variants of the expression are now used figuratively to describe any straightforward and trouble-free activity. There might seem to be be little more to say about 'plain sailing', if it weren't for the existence of the phrase 'plane sailing'.//
延伸閱讀：http://bit.ly/2usayPd
diphthong中文 在 【字正腔圓| 中字】學音標(Part 3: Diphthongs 雙元音 - YouTube 的推薦與評價
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