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 do, too. I come here often.
我也是。我常来这 。
As you all know.
你们知道。
We'll let you know the next time we need to place an order.
下次需要订购时我们会通知你。