AlittleboywasplayinginhissandboxonaSaturdaymorning.Whil...
问题详情:AlittleboywasplayinginhissandboxonaSaturdaymorningehewasbuildingroadsandhousesinthesoftsand,hediscoveredalargestoneinthemiddleofthesandbox.Thelittleboypushedandpulled,buteverytimehethoughtheha...