Dimetalation
二金属取代作用
🗣️ 情景例句
If negotiaton fails, then what?
万一谈判破裂，怎么办？
You give me the money. I'll get you the goods.
一手交钱，一手交货。
They're said to be very good. What time does the performance start?
据说他们很棒。演出什么时候开始？