Acethydrazide
乙酰肼
🗣️ 情景例句
What kinds of articles have you written?
你写过一些什么样的文章？
We were pleased to hear from your letter of 6 August that you were impressed with our selection of toys.
我们很高兴收到你方8月6日来函得知你方对我们的玩具非常感兴趣。
My cousin's a sailor.
我的堂兄是个海员。