Acetylenehalide
[机] 乙炔基卤
🗣️ 情景例句
Let's see.
让我想想。
It is said that a new policy is being put into practice in your foreign trade.
据说你们正在实施一种新的对外贸易政策。
I don't doubt that he will help me.
我不怀疑他会援助我。