People in the state of nature may have regular and continual contact with one another.

在自然状态中的人们可能互相,有定期并持续的联系。

耶鲁公开课 - 政治哲学导论课程节选

Are there any regular parties that students can enjoy?

学生们有什么定期的派对吗？

有趣的宿舍生活 - SpeakingMax英语口语达人

It will include the syllabus which will occasionally be revised well and advance Also all of the class material will be on the site including copies of slides I'm presenting including this slides right now.

网站上资源里有教学大纲,我会不定期更新,会非常及时,所有的课程资料也会放在网上,包括我所展示的幻灯片,包括我现在放的这个课件

耶鲁公开课 - 心理学导论课程节选

I know this is true, that is, I know I have the reputation, both because I periodically in my student evaluations get told I'm one of Yale's harsher graders, and because every now and then the Yale Daily News will have an article about grade inflation and they'll always ask me, " ... Well Professor Kagan is somebody..."

这是真的，而我之所以有这样的名声,是因为在学生定期评估时,我被告知自己是耶鲁最严厉的人之一，还因为那不时出现的耶鲁日间新闻,有篇文章会谈到关于成绩膨胀的事,人们总会问我“,卡刚教授“

耶鲁公开课 - 死亡课程节选