Leightonite
[矿]钾钙铜矾
🗣️ 情景例句
But first, I think we should take a moment
不过首先 我想我们应该用一两分钟
Teach your grandmother to suck eggs.
班门弄斧。
But some people don't want good farmland to be built on.
但有些人不愿意把好的农田用来建造厂房。