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
It really doesn't matter at all.
真的没关系。
I asked him to keep quiet, but he wouldn't.
我请他保持肃静，但是他不肯。
Oh, listen to the loudspeaker. I think Mr. Hu is going to tell us the result right now.
哦，请听广播。我想胡先生马上就要宣布比赛结果。