Arbitrary constant
[计] 任意常数
🧩 词语组成解析
🗣️ 情景例句
That's like closing the gate after the horse has bolted.
那无异于马后炮。
How can you be so stubborn?
怎么那么死脑筋？
He always took off his shoes and threw them on the floor.
他总是脱下鞋子，把它们丢在地板上。