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
In two or three months, I'll have an advance on my book
两到三个月后 我能得到我那本书的预付款
To be killed
被杀
He will take part in an important race across the Atlantic.
他将参加一次重大的横渡大西洋的比赛。