第 71 课: 小学和大学-3

This is a backpack. 这是背包。

This is a notebook. 这是笔记本。

The student is writing in the notebook. 学生在笔记本上写字。

The student is putting the notebook into the backpack. 学生把笔记本放进背包里。

He is studying. 男孩在学习。

She is studying. 女孩在学习。

He is teaching. 男人在教书。

She is teaching. 女人在教书。