Efficiency variance
[经] 效率差异
🧩 词语组成解析
variance
['vɛəriəns]
n. 变化，变动;不一致;分歧;<数>方差;
🗣️ 情景例句
Is it supposed to rain today?
今天要下雨吗？
Yes, I got dressed and had breakfast.
是,我穿好衣服了并且吃了早餐。
How can we find out who are using these computers?
我们怎么知道都有哪些人在使用我们的计算机呢？