Oxamide
草酰胺, 乙二酰二胺
🗣️ 情景例句
My father is an engineer of a construction company, and mother is a doctor.
我父亲是一家建筑公司的工程师，母亲是一名医生。
Justice has long arms.
天网恢恢，疏而不漏。
Yes, I do.
是的，我有。