Ethymal
乙琥胺
🗣️ 情景例句
Thanks for all your hospitality.
谢谢你的感情招待。
He has come to be recognized as an expert in the problem of overpopulation and food supply.
由于他的经验促使他终于成为了公认的人口过剩和食物供应问题的专家。
The question was, which one?
问题是，哪一种气体导致火灾呢？