There are groups of people who have studied the impact of Trans fats on health for a number of years.

有些人已对反式脂肪,对健康的影响进行了数年的研究

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

This was the way at least a good many number of ancient people saw early Christian groups.

至少很多古人,对早期基督教团体的看法就是如此。

耶鲁公开课 - 新约课程节选

By the end of the period there was an unprecedented number of new religious groups.

在这段时期末,出现了空前多的新宗教派系。

耶鲁公开课 - 弥尔顿课程节选