Dinaphthylamine
二萘胺
🗣️ 情景例句
Use a dictionary and grammar guide constantly.
经常使用字典和语法指南。
I like football best.
我最喜欢足球。
Up to the time of his death, Richard Colson was one of the most notable figures in our town.
理查德。科尔森生前是我们镇上最有名望的人之一。