Overall,it says insurgent attacks fell to 12 per day from 22 per day during the previous three months, while Iraqi civilian casualties fell 35 per cent.

VOA: standard.2009.03.31

And what you will give me in return is on the first day, one cent-- one penny; on the second day, two cents; third day, 4 cents... Every day, twice as much as the previous day, starting with one.

你们给我的是，第一天，一分钱;,第二天，二分钱，第三天，四分钱。,每天给我前一天的两倍钱，从一分钱开始。

哈佛公开课 - 幸福课课程节选

Other days you have more normal intake, or you might be making up for the deficit the previous day and you might have more; and so which of those particular days gets chosen determines a lot on inferences made about a person's overall diet.

有些天你可能吃的比平时多,可以弥补前些天少吃的东西,甚至还要更多,这些特定日子的选择,对推断人的整体饮食,影响很大

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选