And we will tell how spending months in space could be bad for your health.

VOA: special.2009.03.10

It's important for the public health to change the partitioning of fat so you move from bad to the better fats in the diets.

改变使用的脂肪种类对大众健康十分重要,所以大家要将饮食中的坏脂肪换为更好的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

He has had a bad summer. His numbers are down, health care is in peril and he has not been able to work his will on his own party, much less the opposition Republicans."

VOA: standard.2009.09.02