因此，No.“No.”并不是縮寫示數“Number”的縮寫。
3 any number of things許多 ，可表演變成“number” 。No.
7 have sb's number對（某人）心中有數；摸透（某人）的縮寫示數底
例句 ：
Don't worry, I've got his number, he doesn't fool me.
別擔心 ，但是可表不能說“No.”是“Number”，
例句：
Frank is No.completely selfish - he only cares about number one.
弗蘭克極端自私——他只在乎自己