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
So, what do you think you're going to do?
那么你打算怎么办呢？
I played downstairs last night.
我昨晚在楼下玩。
It's quite a nice horse! But please don't play with my chalk.
这匹马相当好看！但请不要玩我的粉笔。