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
But I am thinking about myself.
但我就是在为自己着想呀。
We're all anxious to hear Mr. Jones'remarks.
我们都很急切地想倾听琼斯先生的讲话。
The man said that the pen was worth $50,
那人说那支笔值50英镑，