Tetrazone
四氮腙, 偶二氮化合物
🗣️ 情景例句
That's quite true, but on the other hand, we have to think of our priorities.
那很有道理，但我们还必须分清轻重缓急。
The best (greatest) fish keep (swim near) the bottom.
好鱼游水底（指：有价值之物不能轻易得到）。
I'm glad our negotiation has come to a successful conclusion.
我很高兴这次洽谈圆满成功。