Four-stroke
a. 四冲程的（内燃机）; 四行程
🧩 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;
🗣️ 情景例句
I am also glad to be here.
我很高兴来这里 。
He insisted on going along.
他坚持要一个人去。
She has been helping her husband for thirty years now.
她已经帮了她的丈夫30年了。