Piston engine
[机] 活塞动力机
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
engine
['endʒin]
n. 发动机，引擎;工具;火车头;机车;
vt. 给…安装发动机;
🗣️ 情景例句
The teacher flunked him in geography.
老师给他的地理打不及格。
He who laughs at crooked men should need walk very straight.
正人先正己。
What's the time?
几点了？