11视频豆瓣6.3
9视频豆瓣9.1
4视频豆瓣7.6
9视频豆瓣5.6
5视频
老师用手指将注意力引导到学生头顶上显示的数学图表上;的笔记本,有助于理解和加深对主题的理解。
Using his finger, the teacher guides attention to a mathematical chart displayed atop the student's notebook, facilitating comprehension and fostering a deeper understanding of the subject matter.
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