Circular piston
[电] 圆活塞
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
🗣️ 情景例句
Excuse me, officer.
对不起 警官。
Truth's best ornament is nakedness.
不加装饰是真理的最好的装饰。
I had no sooner got off the ship than I was assailed by a man who wanted to sell me a diamond ring.
我刚下船，就被一个人截住，他向我兜售一枚钻石戒指。