Selenophen
[化] 硒吩
🗣️ 情景例句
I don't know what I would do without you.
我真不知道没有你们我怎么办。
He speaks Chinese every day.
他每天都讲汉语。
I don't know! The address was on a piece of paper,but I can't find it now!
我不知道！地址在一张纸上，但现在找不着了！