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
Listen, Richard,doing aerobics for an hour is a lot different than lifting weights.
听着， Richard，一小时的有氧运动可与举重大不相同。
She failed to call the office to cancel her appointment.
她没能打电话给办公室取消她的约会。
Now I can make my plans for the rest of the month.
现在我可以安排这个月其余时间的活动了。