Principalness
n. 校长；委托人, 当事人；资本；主犯 (principal的变形)
🗣️ 情景例句
How long will it take for my mail to reach its destination?
我的信件到达目的地要多久？
Who do you think you are?
你以为你是谁？
No, let me pay this time.
不，这次由我付。