Flotator
浮选机
🗣️ 情景例句
Nets for tennis and badminton and so on.
有网球和羽毛球用的网等等。
I must say that I'm a little at a loss as to how to introduce them.
我必须表明对于如何介绍他们，我有点不知所措。
It's dangerous!
危险！