You can look up, look down, look at the board or look at the teacher.

你可以向上看，向下看，看黑板或者看老师。

youdao

Look up. Look down. Look at the board. Look at the teacher.

向上看向下看看黑板看老师。

youdao

Look up. Look down. Look at the board. Look at the teacher.

向上看向下看看黑板看老师。

youdao