Dnn
[医][=1，5-dinitronaphthalene]1，5-二硝基萘
🗣️ 情景例句
Well, it's hard work.
嗯 这种工作很辛苦。
Honour and profit lie not in one sack.
荣誉和利益不能并存。
We'll have to talk this over some more.
这件事我们得好好地再谈一谈。