Nnp
[醫][=n-nitroso-piperidine]n-亞硝基替哌啶
??? 情景例句
Hello.
喂。
What time do you start work?
你什么時候開始工作？
At last she said:There's nothing much wrong with you, but I'm afraid you have a problem.
“你沒有什么大毛病，不過，恐怕你有個問題。