Additive identity
[计] 加性单位元素, 加法恒等元
🧩 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
He wrote some nice articles on Mom
他写了一些介绍妈妈的好文章
A threatened blow is seldom given.
虚张声势，吓唬而已。
I can't afford to go to a restaurant every day.
每天都去餐馆吃饭，我真是支付不起。