Ketovinylation
酮乙烯化作用
🗣️ 情景例句
The pollution in Beijing is alarming.
北京的污染给人们敲起了警钟。
Rome was not built in a (or one) day.
罗马不是一日建成的。
He has to take care of his sick mother.
他得照顾他生病的母亲。