Dnn
[医][=1，5-dinitronaphthalene]1，5-二硝基萘
🗣️ 情景例句
Mr. Lu, everything is OK. Your booking is from today through Wendnsday. Single room.
陆先生，没问题的。您从今天订到星期三，单人房。
What are you interested in studying?
你对攻读什么感兴趣？
Yes. He wanted you to ring him.
留了。他要你给他打电话。