Polyhydrazide
[化] 聚酰肼
🗣️ 情景例句
A man next to me was smoking,and smoke really bothers me.
我旁边的那个人抽烟，我受不了。
I'm sorry, but I didn't catch what you said.
对不起，我没有听明白你的话。
I beg your pardon?Who's climbing the tree?
你说什么？谁在爬树？