Finned cylinder
[机] 凸片气缸
🧩 词语组成解析
a. 有鳍的
🗣️ 情景例句
What time is it?
现在是什么时间了？
To be of use in the world is the only way to be happy.
为善最乐。
I'm sorry, but we have a problem here.
对不起，我们有困难。