老师在教室里走了一圈收试卷。

The teacher went round the class to gather the papers.

youdao

你们的老师在教室里吗？

Is your teacher in the classroom?

youdao

老师在教室里踱来踱去，腋下夹着把戒尺。

The master walked up and down the classroom with a ruler under his arm.

youdao

They intended to be a new model for the open charity formation and it's not intended to replace the real education that happens in the classroom that is the interaction between the faculty and students and between the students.

它致力于成为,慈善性开放信息的新榜样,并且不意味着取代传统教学,传统教学在教室里,老师和学生以及,学生之间都有互动。

麻省理工公开课 - 媒体、教育、市场课程节选