Fcv
abbr. fill-and-check valve 注入与检查阀门
🗣️ 情景例句
I like to listen to the music and to play piano and occasionally to go swimming.
我喜欢听音乐、弹钢琴，有时候去游泳。
That work will take three hours.
完成那项工作需要三小时。
Let 's go out and have a look at it.
走，我们去看看？