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
She said if I come by,
她说，如果我去一趟，
I worked at the factory this afternoon.
我今天下午在工厂工作。
It was half past four. Everything was ready.
一切都准备好。