TheNativeAmericaninterpreterSacajaweawasavaluablememberoftheLewisanddarkexpeditionin1805.
A、veryfriendlyA mythical(imaginary) creature, the dragon was believed to have lion's claws, scaly skin, and fiery breath.
People who do not sleep enough tend to become irritable .
Cometsarestillregardedwithawebysomepeople.
Creamoftartar酒石,aweakacid,canbeaddedtoeggwhitestohelpthemfoam泡沫whentheyarebeaten
Urban renewal programs strive to upgrade areas that are becoming slums.
