P-nitroacetophenone
[化] 对硝基苯乙酮
🗣️ 情景例句
When does he arrive?
他什么时候到？
Don't you think you've eaten enough?
你不是吃的很多了吗？
We had some shoes like those a month ago,but we don't have any now.
一个月前我们有这要的鞋。但是现在没有了。