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
Sounds like ...
声音像……
Some young couples get married on that day too.
一些年轻的夫妇也在这一天结婚。
We can't sign the contract yet.
我们还不能在契约上签字。