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
and used to play drums with the jazz band on weekends.
周末还经常在爵士乐队中打鼓。
Do you work near the library?
你在图书馆附近工作吗？
We certainly expect our product to be available by October 1.
我们的产品在可在10月1日前准备好。