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
Come forward.
到前面来。
I would like to talk with someone in charge.
我想请你们负责人讲话。
Back at the hive they watched the wagging dance closely.
他们回到蜂箱旁，仔细观察摇摆舞。