Dnn
[医][=1，5-dinitronaphthalene]1，5-二硝基萘
🗣️ 情景例句
I owe what I am to my uncle.
我能有今天要感谢我的伯父。
Experience keeps no school, she teaches her pupils singly.
亲身经验，才是经验。
Sure. Later this evening.
当然可以。今晚晚些时候。