- 問題詳情:WashingtonthecapitaloftheUnitedStates.It'sthecenterofthenationalgovernment.It'sabusy,workingcitywithalargepopulation.Butwhatismore,Washingtonisalsoacityofhistoryandculture.Washingtonwascreatedin1790,whenCongress(國會)decidedtoplacethenation's...
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