Oxamide
草酰胺, 乙二酰二胺
🗣️ 情景例句
He's not crying anymore.
他不再哭了。
My father is vacationing in the north.
我父亲正在北方度假。
Spiders are busy for at least half the year in killing insects.
蜘蛛至少有半年在忙于吃昆虫。