Oxamide
草酰胺, 乙二酰二胺
🗣️ 情景例句
Yes, honey. I did.
是的， 亲爱的， 是这样。
His heart cannot be pure whose tongue is not clear.
嘴不净者心不纯。
Good evening! Mr Green, where are you from?
晚上好，格林先生，你是哪里来的？