Rarify
vt. 使成精细；使变稀薄\\nvi. 变稀薄；纯化
🗣️ 情景例句
I'll take the application and letter tomorrow when I come in.
明天我来的时候，会把申请表和推荐信带来。
If he doesn't wake him, I will.
如果他不，我将叫醒他。
Towards midday, a girl heard a muffed cry coming from behind on of the walls.
快到中午的时候，一个女售货员听见从一堵墙里传出一种闷声闷气的叫声。