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've found the perfect woman.
我已经找到了十全十美的人。
If you command wisely, you'll be obeyed cheerfully.
倘君指挥有方，人人欣然听命。
It was no use pretending that I had not seen him, so I waved to him.
若再装作没看见他已是没有用了，我只好向他招手。