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
Well, I guess we all have to take our mind off work once in a while.
对，我们都应该忙里偷闲。
I often go to market in the afternoon.
我常常在下午去市场。
They will also be building new roads and a special railway line.
他们还将修筑一些新的道路和一条铁路专线。