Identity function
[计] 恒等函数, \是\函数
🧩 词语组成解析
identity
[ai'dentiti]
n. 身份;[逻]同一性;个性;[数]恒等（式）;
🗣️ 情景例句
at all the great places in the city.
去城市所有的好地方看看。
She insists that it doesn't make any difference to her.
她坚持对她没有任何差别。
He goes home early everyday for fear that his wife would be angry.
他每天很早就回家，免得老婆生气。