(sound) He says organizational procedures were devised based on the categories that have been determined by the Saudi health minister.

VOA: standard.2009.07.23

You'll find that those events as they get approved and start getting proposed by your classmates, they'll start appearing on the calendar as well in their respective categories.

你将会发现随着那些事情渐渐被认可,你的同学也开始推荐它们，它们也将开始在日历,和各自的分类中出现。

哈佛公开课 - 计算机科学课程节选

By the one, the few, the many, ? or some combination of these three categories?

专制，寡头，民主，或混合政体？

耶鲁公开课 - 政治哲学导论课程节选