在一个班级里，正在上一堂生理课，女老师刚讲完就问：同学们，谁还有不明白的地方，就可以举说问老师。

In a class, is on a physical class, female teachers just to finish: students, and who also do not understand, ask the teacher can give that.

youdao

老师的气劲存在于班级里，在讲台上，在听众间，一切都是他深爱的。

A teacher's strength exists in class, on the stage, and among the audience, which are all his beloved.

youdao

在班级里有一个老师。

There is one teacher in the class.

youdao