At this time we already sitting in the classroom.

我们在这个时候早已坐在教室里了。

youdao

I don't like sitting in the classroom all the time.

我不喜欢总是坐在教室里。

youdao

So on Saturday they will not be sitting in the classroom.

因此，星期六这时候他们不在教室里。

youdao

Most probably they'll post them somewhere so people elsewhere can have the benefit of what you have sitting in the classroom.

一般来说他们会把这些视频资料发到网上,这样世界各地的人们就能,和坐在教室里的你们一样从中获益

耶鲁公开课 - 基础物理课程节选

Their students are often too young and inexperienced to learn skills that, in any case, are often easier to acquire in the workplace than sitting in a classroom.

ECONOMIST: Business schools

I've spent the last several days sitting in a crowded, windowless Macy's classroom undergoing the first phase of elf training.

NPR: Crumpet the Elf Reads from Santaland Diaries

Rather than sitting in a leather chair talking with someone reclined on a matching leather couch, I sit in the back of the classroom.

FORBES: Lemon Squares and the Acceptance Thereof