Dinitrophenylation
二硝基苯基化, DNP化
🗣️ 情景例句
Be our guest.
请随意。
It is better to be alone than in bad company.
无友要比交坏友好。
A man was lying in the box on top of a pile of woolen goods.
箱内有一个人正躺在一堆毛织品之上。