Idle-activity variance
[经] 闲置活动(作业)差异
🧩 词语组成解析
idle
['aɪdl]
adj. 无意义的;空闲的;懒惰的;无根据的;
vi. 虚度;空转;挂空挡;未熄火;
vt. 虚度;使空转;
n. （尤指暂时地）关闭工厂，使（工人）闲着;
variance
['vɛəriəns]
n. 变化，变动;不一致;分歧;<数>方差;
🗣️ 情景例句
Of course. I'm so sorry for Michelle.
当然。我为Michelle担心。
If we had been more careful, we would be getting much better results now.
如果我们更为细心的话，成绩会更好。
Mum and Dad were not at home.
爸爸妈妈不在家。