Population variance
[化] 总体方差
🧩 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
and his interview was very successful.
他的面谈很成功。
You were here in February,weren't you?
二月份你曾在这里，对不对？
but the took a long time to send them Meanwhile,
但过了好长时间不见他把数字寄来，