Sailorsusedtospeakofa“Jack”whentheymeantaflagwhichwasse...
問題詳情:Sailorsusedtospeakofa“Jack”whentheymeantaflagwhichwassetnearthebowofasailingship.Theflagshowedthecountrytowhichtheshipbelonged.TheUnionJackbecametheflagofGreatBritain.Australia'sflaghastheU...