Carbohydrazide
碳酰肼, 卡巴肼, 均二氨基脲
🗣️ 情景例句
If you don't mind my asking, where did you come from?
你从哪儿来？要是你不介意我这么问的话。
It's on of his favorite relaxations.
这是他最喜欢的消遣之一。
Are you a teacher?
你是教师吗？