Estimate variance
[计] 估计方差
🧩 词语组成解析
estimate
['ɛstə,met]
n. 估计，预测;报价，预算书;评价，判断;
vt. 估计，估算;评价，评论;估量，估价;
estim价值+ate动词后缀 → 使之成为有价值的东西的过程 → 估计，估量
variance
['vɛəriəns]
n. 变化，变动;不一致;分歧;<数>方差;
🗣️ 情景例句
John is tied up at the present time.
John现在有事。
Money burns a hole in his pocket.
钱到袋里留不住。
She makes it clear that she doesn't like swimming.
她明确地表示她不喜欢游泳。