Piston clearance
[化] 活塞间隙
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
🗣️ 情景例句
Look, who's here, Peter!
看，这是谁，彼得！
Ah, goody! Breakfast is ready.
噢，太好了！可以开饭了！
We were both lucky. I think she is a hero too!
我们俩都很走运。我认为她也是个英雄。