Dinitrofluorobenzene
[免疫]二硝基氟苯
🗣️ 情景例句
I don't understand.
我不懂你在讲什么。
I want to make a long distance call.
我想打个长途电话。
You mustn't come home late.You must be home at half past ten.
你不准回家太晚，你必须在10点半到家。