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
watch the last three minutes of the game.
看完那最后三分钟的球赛。
No, I don't think so.
不，我想不会。
I'll go to that shop and see if they have a telephone.
我去那个商店，看看是否有电话。