TimRichterandhiswife,Linda,hadtaughtforover30yearsnear...
问题详情： TimRichterandhiswife,Linda,hadtaughtforover30yearsnearBuffalo,NewYork—heincomputers,sheinspecialeducation.“Teachingmeanseverythingtous，”Timwouldsay.InApril1998,helearnedhewouldneedaheartop...