Nitrosopyrrolidine
[化] 亞硝基吡咯烷
??? 情景例句
That's true.
正是如此。
What are you drawing?
你正在畫什么？
he said. But I don't have many friends, and I don't enjoy myself very much. I don't know why!
他說，“但是我沒有很多朋友，我過得不很愉快。我不懂為什么！”