Ifyouputabuzzard（*）inapen（围栏）sixtoeightfeetsquareanden...
问题详情：Ifyouputabuzzard（*）inapen（围栏）sixtoeightfeetsquareandentirelyopenatthetop,thebird,inspiteofitsabilitytofly,willbeaprisoner．Thereasonisthatabuzzardalwaysbeginsaflightfromthegroundwitharunoftentotwe...