Carbodihydrazide
[机] 卡二酰
🗣️ 情景例句
Is it finished yet?
行了吗？
This mountain range has many high peaks and deep canyons.
这条山脉有许多高山峰和深峡谷。
I know it's not necessary. I want to do it.
我知道不必这样，可是我愿付？/span>