Chalkogenide
硫属化物
🗣️ 情景例句
Thank you, Mr. Riley. We'll read this over carefully.
谢谢你 Riley先生。我们会仔细阅读这些。
The more riches a fool hath, the greater fool he is.
愚人越富越愚蠢。
Is it on the desk?
是在桌子上吗？