- 问题详情:Mobilephonehasbecomeaproblemformiddleschoolstudents.SomemiddleschoolsinAustraliahavebanned(禁止)studentsfromcarryingmobilephonesduringschoolhours.Mobilephoneuseamongchildrenhasbecomeaproblemfortheschoolthisyear.Severalchildrenhavegotmobilepho...
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