Piston stroke
[化] 活塞冲程; 活塞行程
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
stroke
[strok]
n. 一击;击球;划水动作;中风;
vt. 划掉;轻抚;轻触;敲击;
vi. 击球;作尾桨手，指挥划桨;
🗣️ 情景例句
China is implementing a family planning policy.
中了在实施计划生育政策。
Knowledge is long, life is short.
吾生有涯，而知无涯。
I was thinking about next Tuesday.
我想下个礼拜二。