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 maybe you can help me set the table.
也许你能帮我摆桌子。
I'll connect you with his office.
我会打电话到他的公司和你联络。
It took great imagination as well as patience for Annie to teach me to speak.
教我说话需要极大的想像力和耐心。