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
Let's go.
我们走。
How many feet are you going to use?
你要用几英尺？
Happy birthday! said the twins, and gave her a big red box.
“生日快乐！”双胞姐妹说，并将一个大红盒子送给了她。