Pentamoxane
戊胺惡烷
??? 情景例句
No, no. I'll do that.
不， 不。我自己來。
I don't care.
我不在乎！
I've got a problem and as I don't know what to do I thought I'd write to you and ask for your advice.
我有一個問題，因為我不知道該怎么辦。我想我最好寫信給你，征求你的意見。