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
But when Robbie was born,
但当Robbie出生后，
I want to be a journalist after graduation.
毕业后我想当记者。
My friend Li Lei likes mooncakes with meat.
我的朋友李雷喜欢放有肉的月饼。