Today,theworldisrapidlyurbanizing．Withhalfoftheworldpop...
问题详情：Today,theworldisrapidlyurbanizing．Withhalfoftheworldpopulationexpectedtoliveincitiesbytheearlypartofthe21stcentury,theShanghai2010WorldExpo'sfocusonabettercitybearsprofoundmeaning．Whatmightfutu...