The National Institutes of Health suggests that women limit their calories to no less than one thousand two hundred calories a day without medical supervision.

VOA: special.2010.06.08

And five weeks less one day later I decided you know what this might actually be for me and I switched from pass-fail to letter graded status at that point in time.

而第五周的最后一天,我从上及格-不及格制的课程转为上数字学分制的课程,你们可能知道这对我来说意味着什么。

哈佛公开课 - 计算机科学课程节选

America's National Institutes of Health has suggested that women limit calories to no less than one thousand two hundred calories a day without medical supervision.

VOA: special.2011.07.05

"Extreme poverty" is defined as earning less than one dollar a day.

VOA: special.2010.04.26

But nearly one-half of its people live on less than $1 per day.

VOA: standard.2009.10.19