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
Pete wrote us and told us.
Pete写信告诉我们的。
She never showed up.
她一直没有出现。
My father is at home looking for the ticket.
我爸爸正在家里找票呢！