Permutations
n. （一组事物可能的一种）序列, 排列, 排列中的任一组数字或文字( permutation的复数形式 )
🗣️ 情景例句
I've known Martin for years.
我认识马丁好多年了。
According to the regulations, sir, you'll have to reimburse the bank for the amount paid.
根据规定，先生，您应该补偿银行付的那笔款了。
However, a few days later, he was told that a mistake had been made.
然而，几天之后，有人告诉他说弄错了。