Ketosubstrate
酮基底物
🗣️ 情景例句
Forget it.
不足挂齿。
What? Already? Won't you have more coffee?
怎么，已经要走了？要不要再喝点咖啡？
He started to complain about this wicked world but was interrupted by a knock at the door.
他开始抱怨起这个邪恶的世道来，却被一阵敲门声打断了。