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
She sells sea shells on the shining seashore.
她在亮晶晶的海滩上卖贝壳。
What is it you don't like about winter weather?
你不喜欢冬天什么样的天气？
He said that someone might be spying on the station and the pilot was ordered to keep track of the strange object.
他说可能有人正对基地进行侦察，因此命令那个飞行员跟踪那个奇怪的飞行物。