Mbna
[医][=N-methyl-N-benzylnitrosamine]N-甲基-N-苄基亚硝胺
🗣️ 情景例句
My wife died four years ago.
我妻子四年前去世了。
What day was yesterday?
昨天是星期几？
People are not so honest as they once were.
人们不再像以前那样诚实了。