Rarify
vt. 使成精细；使变稀薄\\nvi. 变稀薄；纯化
🗣️ 情景例句
If I had a child as cute as Max,
假如我有一个像Max这样可爱的孩子，
We had a good time.
我们过得很愉快。
It could only get over the mountains if it rose to 10,000 feet.
只有在飞至10，000英尺的高度时，它才能飞过这些山头。