Dena
[医][=diethylnitrosamine]二乙基亚硝胺
🗣️ 情景例句
My father always interferes with me.
我父亲经常干涉我的事。
Wilful waste makes woeful want.
浪费招致穷困。
Could I have this sample free of charge?
这样品可以免费送我吗？