Pattinsonization
粗铅除银精炼法
🗣️ 情景例句
I'm almost ready here.
我快要准备就绪了。
Who has never tasted bitter, knows not what is sweet.
不尝黄连苦，怎知蜂蜜甜。
What kind of quality control do you have?
你们用什么办法来控制质量呢？