求翻译：在中国，有很多家长利用课余的时间，让孩子去学习课外的知识，比如钢琴，舞蹈，音乐，书法等等。一个学生一天8个小时是用在课堂学习，而另外要花费3个小时在课外学习。是什么意思？

In China, many parents use school time for children to learn extra knowledge, such as piano, dance, music, calligraphy and more. 8 hours a day a student is learning in the classroom, and the other to spend three hours in extra-curricular learning.

In China, there are a lot of parents use their spare time to allow the children to go to study and extra-curricular knowledge, such as piano, dance, music, calligraphy, and so on. One of the students is 8 hours a day spent in classroom learning, and in addition to spend three hours in extra-curricul

In China, has very many guardians to use the after school the time, lets the child study the extracurricular knowledge, for instance piano, dance, music, calligraphy and so on.Student day 8 hours are use in the classroom study, but other must spend for 3 hours to study extracurricularly.

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