Guidedogs(导盲犬)areabighelptoblindpeople.Aguidedoghelpsit...
问题详情：Guidedogs(导盲犬)areabighelptoblindpeople.Aguidedoghelpsitsownercrossthestreetanddomanyotherthings.Butitisnoteasytobecomeaguidedog.Here’swhatadogmustdotogetthejob:1.Whenthedogisveryyoung,trai...