- 问题详情:Americanchildrenhaveexcitingafter-schoollife,anewstudysays.Manyjuniorandseniorstudentshavelotsoffunnythingstodointheirfreetime.Morethan57%haveactivitieseveryday.82%haveactivitiesatleastfourtimesaweek.Americanstudentsspendtheirfreetimedoingspo...
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