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Keepingabusysociallifeamonglotsoffriendsmaykeeppeoplethinnerthanspendinghoursdoingsomeexercises,accordingtoscientists.Theysaythatsocial
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ts.They say th
Researchshowsthatkeepingabusysociallifeamonglotsoffriendsmaykeeppeoplethinnerthanspendinghoursdoingsomeexercises,accordingtoscientists.
英语
ccording to sc
SinceJanuary2013,manycitiesinChinahaveseenalotoffoggydays.InBeijing,onlyfivedaysinJanuarywerefreeofsmog(雾霾).What’sthedifferencebetween
英语
What’s the di
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