Also on board is a new exercise machine, which is part of ongoing studies into the effects of long-term space flight on muscle and bone loss in astronauts.

VOA: standard.2010.04.05

There's almost always some weight loss book on the best-seller list, and the question is, which of these approaches to dieting works the best?

教人减肥的书总高悬在畅销书排行榜上,问题在于,哪种减肥方法是最有效的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

There's almost always some weight loss book on the best-seller list, and the question is, which of these approaches to dieting works the best?

教人减肥的书总高悬在畅销书排行榜上,问题在于,哪种减肥方法是最有效的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选