Study leader Pooja Tandon says even small calorie reductions on a regular basis can prevent weight gain over time.

VOA: special.2010.01.27

Just take a small example: the Bureau of Study Counsel.

举个小例子：,学习咨询处。

哈佛公开课 - 幸福课课程节选

Now,a small but intriguing new study looks at one way the delivery method might affect the baby's health.

VOA: standard.2010.06.30