Activity variance
[经] 活动差异
🧩 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
How come he never got married?
为什么他不结婚？
Humility is the foundation of all virtue.
谦逊是一切美德的基础。
So much is certain: that we would have doctors and preachers,
虽然我们还会有医生和牧师、