Prepurification
预纯化(作用)
🗣️ 情景例句
The production department's waiting in the conference room.
生产部门的人正在会议室等你 。
My first name is Bill.
我的名字叫比尔。
He made up his mind to once again ask for her hand in marriage.
他下决心再一次向他求婚。