Nitropropiol
[医] [邻]硝基苯丙烯酸
🗣️ 情景例句
your reasons for wanting an animal.
你要养动物的原因。
The student is busy studying math.
这个学生忙于研究数学。
I have two cats. One is white, the other is black.
我有两只猫，一只是白猫，另一只是黑猫。