我们给其他学生一组问题，让他们回答他们觉得自己每天浪费了什么东西，怎么样？

How about we give the other students a set of questions to answer about what they suspect they waste every day?

youdao

一旦油市从紧，另一组问题便会产生。

When oil markets tighten, another set of problems emerges.

youdao

这又引出了另一组问题？

That brings up another set of questions.

youdao

What this is, is you take a group of studies on an issue, you pool them all together, and then you weight studies differently depending on factors like how large they were, how good their methods were, and then you come out with overall estimates about the impact of something, in this case the Mediterranean Diet, on health outcomes.

所谓荟萃分析就是将某一问题的一组研究,汇总起来,并根据某些因素,赋予这些研究不同的权重,如基于研究的大小,研究方法的好坏等,然后得出关于某事物的影响的总体评估,在地中海式饮食中就是指健康结果

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选