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
We all condemn cruelty to children.
我们一般谴责虐待儿童的行为。
Don't mention it. I hope you can come again soon.
不用谢，希望你不久能再来。
I think you probably know China has adopted a flexible policy in her foreign trade.
我想你也许已经了解到中国在对外贸易中采取了灵活的政策。