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
I need some.
我确实需要。
The black ox has trod on his foot.
祸事临头。
We can have our coffee there.
我们可以在那里喝咖啡。