Nitrourea
硝基脲
🗣️ 情景例句
I am studying two majors, and it's quite a burden on my time.
我有两门主修课，这占据了我很大一部分时间。
A crow is never the whiter for washing herself often.
乌鸦不管怎样经常洗澡，也不会变白。
How do you know so much about it? Have you seen the film?
你怎么知道那么多情况？你已经看过这部电影了吗？