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
May I ask how Mr. Mrs- is?
-先生（小姐）好吗？
Since Tom Lee is our sole agent for our products in Korea, we can't make you a direct offer.
因为汤姆·李是我方产品在韩国的独家代理人，所以我们不能直接向您发盘。
But so far, the public has expressed its gratitude to the students in letters to the Press.
但到目前为止，公众已经向新闻界写信表达他们对学生们的感激之情了。