Unit matrix
[计] 单位矩阵
🧩 词语组成解析
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
Yes? Can I do something for you?
什么事？我能为您效劳吗？
You have to be there half an hour before departure time.
你要在起飞前半小时到那里。
I guess so.
我想是吧。