Idempotence
n. [数]幂等性
🗣️ 情景例句
He treats everyone with courtesy.
他对待每一个人都很有礼貌。
What part of the world do you come from?
你从世界的哪部分来的？
I'm afraid! cried Kate. Let's push the boat out and go home!
“我害怕！”凯特喊道，“我们把船推下水回家去吧！”