相关Theysaytherearethree的文学知识

问题详情：TheysaytherearethreewaystoexperiencetheGrandCanyon(科罗拉多大峡谷):onfoot,onmules(骡子)orbyair.Wechosethefirst.Upearly,myhusbandandIandourthreechildrencouldn’twaittogetstarted.Wedecidedtowalk...