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Thereareseveralcausesleadingtopooreyesightlikeillness,a...
问题详情:Thereareseveralcausesleadingtopooreyesightlikeillness,aging(老化)andpoorreading 61 (habit).Televisions,computersandreadingarealsothecausesofhavingpooreyesight.Ifyouhappentoworkinfrontofthe...