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
Tomorrow night.
明天晚上。
Please don't forget to say goodbye to the rest of the family for me.
请别忘了代我向你的家人告别。
Where are you going to spend your holidays this year,Gary?
加里，今年你们打算去哪里度假？