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
If you really mean it,
假如你是说真的，
Progress is the activity of today and the assurance of tomorrow.
进展即今日的活动和明日的保证。
How did you find the fish, Madam?
你觉得鱼的味道怎么样，女士？