Theflowerbudofawaterlily百合opensatsunsetsince.itsopeningistriggered(commence).bythedecreasedlight.
A、alleviated减轻Thecontrolsofmostmodernairplanescanbeoperatedeithermanuallyorautomatically.
Cometsarestillregardedwithawebysomepeople.
TheSalkvaccineisamajorfactorinthefighttoeradicatepolio.
Creamoftartar酒石,aweakacid,canbeaddedtoeggwhitestohelpthemfoam泡沫whentheyarebeaten
Formulatedin1823,theMonroeDoctrineassertedthattheAmericaswerenolongeropentoEuropeancolonization.
