Dipropylurea
二丙脲
🗣️ 情景例句
It's hard to say. I like volleyball a lot, but I guess I like tennis better.
很难说，我喜欢排球，但我想我比较喜欢网球。
A rainbow comes into sight.
彩虹出现了！
and in most cases the captive gradually quietens down and begins to accept its food.
在大多数情况下，刚捕来的象会慢慢静下来，接着开始吃食。