Expansion stroke
[化] 膨胀冲程
🧩 词语组成解析
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
I'll discuss this matter with you behind closed doors.
我要跟你私下谈这个事。
Constant dropping wears away a stone.
滴水穿石。
I'm very proud of you.
我为你感到自豪。