Dinitraniline
二硝基苯胺
🗣️ 情景例句
Excuse me, but may I ask how old you are?
对不起， 我能问一下你多大了吗？
I am really proud of my department and my staff.
我为我的部门和员工们感到骄傲。
Yes, It was a real pity!
可不是，太可惜了。