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
Don't mention it. What would you like to drink?
别客气，想喝点什么？
You can't eat your cake and have it.
不能既要吃饼，又要把饼保存。
Could I use your mobile phone?
能借用一下您的手机吗？