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英语演讲稿梦想fivescoreyearsago,agreatamerican,inwhosesymbolicshadowwestandsignedtheemancipationproclamation.thismomentousdecreecameasagreatbeaconlightofhopetomillionsofnegroslaveswhohadbeensearedintheflamesofwitheringinjustice.itcameasajoyousdaybreaktoendthelongnightofcaptivity.butonehundredyearslater,wemustfacethetragicfactthatthenegroisstillnotfree.onehundredyearslater,thelifeofthenegroisstillsadlycrippledbythemanaclesofsegregationandthechainsofdiscrimination.onehundredyearslater,thenegrolivesonalonelyislandofpovertyinthemidstofavastoceanofmaterialprosperity.onehundredyearslater,thenegroisstilllanguishinginthecornersofamericansocietyandfindshimselfanexileinhisownland.sowehavecomeheretodaytodramatizeanappallingcondition.inasensewehavecometoournation'scapitaltocashacheck.whenthearchitectsofourrepublicwrotethemagnificentwordsoftheconstitutionandthedeclarationofindependence,theyweresigningapromissorynotetowhicheveryamericanwastofallheir.thisnotewasapromisethatallmenwouldbeguaranteedtheinalienablerightsoflife,liberty,andthepursuitofhappiness.itisobvioustodaythatamericahasdefaultedonthispromissorynoteinsofarashercitizensofcolorareconcerned.insteadofhonoringthissacredobligation,americahasgiventhenegropeopleabadcheckwhichhascomebackmarked"insufficientfunds."butwerefusetobelievethatthebankofjusticeisbankrupt.werefusetobelievethatthereareinsufficientfundsinthegreatvaultsofopportunityofthisnation.sowehavecometocashthischeck--acheckthatwillgiveusupondemandtherichesoffreedomandthesecurityofjustice.wehavealsocometothishallowedspottoremindamericaofthefierceurgencyofnow.thisisnotimetoengageintheluxuryofcoolingoffortotakethetranquilizingdrugofgradualism.nowisthetimetorisefromthedarkanddesolatevalleyofsegregationtothesunlitpathofracialjustice.nowisthetimetoopenthedoorsofopportunitytoallofgod'schildren.nowisthetimetoliftournationfromthequicksandsofracialinjusticetothesolidrockofbrotherhood.itwouldbefatalforthenationtooverlooktheurgencyofthemomentandtounderestimatethedeterminationofthene