Most20-year-oldsarestilltryingtofigureoutwhattheywant...
问题详情： Most20-year-oldsarestilltryingtofigureoutwhattheywanttodoinlife.BoyanSlatisnotlikethat.Eversincehewas16-yearsold,theDutchteenagerhashadonemission-tocleanupthetrillionsofpiecesofplasticthat...