Picolinamide
吡啶酰胺, 氮苯酰胺
🗣️ 情景例句
It's certainly a pleasure to meet you.
认识你真是我的荣幸。
Two dogs strive for a bone, and a third runs away with it.
鹬蚌相争，渔翁得利。
Yes, let's.
走吧。