Four-stroke engine
四冲程发动机
🧩 词语组成解析
four
[fɔr]
num. 四;四个;第四;
n. 四的;四个一组之物;
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;
engine
['endʒin]
n. 发动机，引擎;工具;火车头;机车;
vt. 给…安装发动机;
🗣️ 情景例句
That's fine. I think I can wait till then.
好的，我想我可以等到那时候。
We can't recall how often he's written.
我们记不起来他每隔多久写一封信。
Have you got a map to show me? I'm puzzled!
你有张地图给我看吗？我给弄糊涂了！