So when you talk to class four, he says,then it is difficult to teach the little kids in class one.

VOA: standard.2010.02.25

My name is Maria D'Itria, and I teach 5th grade class at the Harvard Kent School in Boston.

我叫玛利亚。狄翠娅,我在波士顿的哈佛肯特学校教授五年级课程。

麻省理工公开课 - 媒体、教育、市场课程节选

Now it's by no means my main aim in this class to teach you jargon.

这节课的目的不是为了教大家术语

耶鲁公开课 - 博弈论课程节选