Circular piston
[电] 圆活塞
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
🗣️ 情景例句
I see him on the train every day but we are not on speaking terms.
我每天都在火车上见到他，但彼此没有说过话。
Riches either serve or govern the possessor.
财富可以侍候主人，也可以支配主人。
I took a burning branch from the fire and went to examine the rock.
我从火堆中拿起一根燃着的树枝，走过去检查那个岩石。