他们指出，业余活动在儿童发展中发挥着重要作用，大量的家庭作业减少了孩子的业余时间，阻碍了他们的发展。

They point out that free-time activities play an important role in childhood development and that large amounts of homework reduce children's free time, hindering their development.

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And I thought it would be useful And I thought it would be useful to have to have opportunities to work with students opportunities to work with students about the issues about the issues outside the classroom outside the classroom that might either inform or impede that might either inform or impede their development their development as scholars.

我觉得，如果有机会与学生交流,我觉得一个有用的办法,会很有益,是创造机会和学生们一起处理,与他们讨论课外的问题,课外一些可能会影响或阻碍,这些问题可能促进或者阻碍,他们作为学者的发展的问题。

普林斯顿公开课 - 人性课程节选