Rarify
vt. 使成精细；使变稀薄\\nvi. 变稀薄；纯化
🗣️ 情景例句
I can't drive a car, but I have a motorbike license.
我不会开汽车，但我有摩托车的驾驶执照。
A man can not spin and reel at the same time.
一心不能二用。
And I want a large box of chalk, too.
我还要一大盒粉笔。