Dinitration
二硝化作用
🗣️ 情景例句
Maybe we can spend some time together next weekend.
也许下个周末我们可以一起玩玩。
That's not a good idea!
这样不太好吧！
So far, they have been unlucky in their search for gold and have no money at all.
到那时为止，他们寻找金子一直碰不上好运，而且他们身上一点钱也没有了。