Flotator
浮选机
🗣️ 情景例句
Well, that'll be eighteen dollars and seventy cents.
嗯 ，十八美元七毛。
Please try to be congenial and welcome the guests with a small.
请用笑脸愉快地迎接客人吧。
It was my first flight. I was nervous when the plane took off.
我第一次坐飞机，起飞时我有点紧张。