Prepurification
预纯化(作用)
🗣️ 情景例句
I am planning to write an editorial that I think will help you.
我计划写一篇社论， 我认为应该能帮助你们。
Will you please measure this window to see how wide it is?
请您测量这扇窗户看它有多宽？
Nothing much. Why?
没啥事。怎么啦？