Piston-engines
(piston-engine 的复数) [机] 活塞发动机
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
n. 火车头；发动机, 引擎（engine的复数形式）
🗣️ 情景例句
We'd prefer a credit card, if you have one.
如果你有信用卡，我们较喜欢信用卡。
I ask him to take this medicine.
我要求他吃药。
Alf did this for over two years and his fellow dustmen kept his secret Alf's wife has never discovered that she married a dustman and she never will, for Alf has just found another job.
两年多以来，艾尔弗一直这样，他的同事也为他保守秘密。 艾尔弗的妻子一直不知道她嫁给了一个清洁工，而且她永远也不会知道了，因为艾尔弗已找到薪职，