Naphthindene
萘并环戊烯
🗣️ 情景例句
It's Carl's birthday,
今天是Carl的生日，
Let every tub stand on its own bottom.
各人管各人自己。
After all, I am the only one of my aunt's relations still alive.
不管怎么说，我是我伯母的亲戚中唯一一个还活着的人。