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'll give him your message as soon as he's available.
他一有空我就转告他您的留言。
I'm not that hungry.
我还不是很饿。
You were very angry!
你火气真大！