Pmts
[化] 磺胺汞
🗣️ 情景例句
It's a beautiful day, isn't it?
今天天气真美，是吧？
I have forgotten his telephone number.
我忘记了他的电话号码。
My brother has never been abroad before, so he is fending this trip very exciting.
我弟弟以前从未出过国，因此，他觉得这次旅行非常激动人心。