Monosulfide
一硫化物
🗣️ 情景例句
So soon? Can't you stay a little longer?
就要走啊？你不能多呆一会儿吗？
Affairs that are done by due degrees are soon ended.
事情要安步就班地做，就会很快地做完。
Is this case yours?
这箱子是您的吗？