TheNativeAmericaninterpreterSacajaweawasavaluablememberoftheLewisanddarkexpeditionin1805.
A、veryfriendlyFoodmustbemoistinordertohaveataste.
Creamoftartar酒石,aweakacid,canbeaddedtoeggwhitestohelpthemfoam泡沫whentheyarebeaten
TheSalkvaccineisamajorfactorinthefighttoeradicatepolio.
Thefearofsmallpox,whichterrorizedtheeighteenthcentury,hasnoanalogy(likeness)today.
InthenortheasternUnitedStates,itrainsintermittently间歇地throughoutthespring.