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
He says there's another inn
他说还有另一家旅馆，
I ask him to see the doctor.
我要求他去看医生。
I went back to the ticket office at once.
我马上又回到售票处。