Piston-engine
[机] 活塞发动机
🧩 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
You will never guess.
你绝对猜不到。
What's the time by your watch?
你的表几点了？
It's really nice of you. Thank you very much. said the man.
“你们真好。非常感谢你们”，那人说。