Paroxypropiophenone
对羟基苯丙酮
🗣️ 情景例句
You are?
是吗？
Dog does not eat dog.
物不伤其类。
The following Thursday, Zheng Jie rings the bell of Mr Brain's house.
下一周的星期四，郑杰按了布雷恩先生家的门铃。