Diazosalt
重氮盐
🗣️ 情景例句
There's so much for young people to see and do.
这里有很多可供年轻人看和做的事情。
You agreed that we could make a little change in design if necessary.
可你们曾经答应这，如有必要，图案可以稍作改动。
Then they had a second child-a son. How happy they were!
后来他们有了第2个孩子一个儿子。他们多么高兴啊！