By the nineteenth century, embroidery on men's clothing had virtually disappeared except for the occasional decorative vest and tie.
A、almostA
暂无解析
TheSalkvaccineisamajorfactorinthefighttoeradicatepolio.
Thecontrolsofmostmodernairplanescanbeoperatedeithermanuallyorautomatically.
DoubleEagleinthefirsttransatlanticballoon,wasgreetedbyavidcrowdsinFrance.
ThefuturesurvivalofthebaldeagleisstillanimportantAmericanecologicalconcern.
Someanimalspantandsweattospeedevaporationofbodymoistureandthuscoolthemselves.
