英语翻译1.Hearingthenamesofthesefamousoldfriends-Yosemite,Yellowstone,GrandCanyon-revivesmemoriesofvisitspastandpromotesdreamsofthosestilltocome.2.TheNationalParkServiceranksalsoincludearchitects,historians,archaeologis

　　英语翻译

　　1.Hearingthenamesofthesefamousoldfriends-Yosemite,Yellowstone,GrandCanyon-revivesmemoriesofvisitspastandpromotesdreamsofthosestilltocome.

　　2.TheNationalParkServiceranksalsoincludearchitects,historians,archaeologists,biologists,andahostofotherexpertswhopreserveandprotecteverythingfromGeorgeWashington'steethtoThomasEdison'swaxrecordings.

　　3.GrowingcommunitiesthirstyforrecreationaloutletsarealsoworkingwiththeNPStoturnabandonedrailroadtracksintobikeandhikingtrails,aswellasgivingunusedfederalpropertynewlifeasrecreationcenters.

　　4.Tohelpmeetthesechallengesandtakeadvantageoftheseopportunities,theNationalParkServicehasformedpartnerships-somedatingback100years,someonlymonthsold-withotheragencies,stateandlocalgovernments,corporations,AmericanIndiantribesandAlaskaNatives,ParkFriendsgroups,cooperatingassociations,privateorganizations,andcommunitygroups.

　　请再帮我特别讲解一下其中partenrship-some与old-with这两个地方的用法的原因.