Ccnu
[化] 氯乙环己亚硝脲
🗣️ 情景例句
Please, come in. Join us.
请进。跟我们一起吃吧。
I know the boy whose father is a policeman.
我知道那个男孩的父亲是警察。
The apparatus thus described, however,
然而，这里所说的仪器