BenUnderwoodisblind.Botheyeswereremovedwhenhewasjustthr...
问题详情：BenUnderwoodisblind.Botheyeswereremovedwhenhewasjustthreeyearsold,leavinghimwithnovisionatall.Sohowonearthdoesheridehisbicycle,playfootballandbasketball? Benusesmanycommonaidsforthe...