TheSalkvaccineisamajorfactorinthefighttoeradicatepolio.
A、completelydestroyWhileBillieHolidaydidnotinventthemusiccalled"theblues",shemostassuredlyhelpedpopularizeit.
ThecompanyissuesanannualreporteveryMarch.
In literature, caricatures讽刺画 usually contain verbal exaggeration through which the writer achieves comic and often satiric 讽刺effects.
Cream of tartar 酒石 , a weak acid, can be added to egg whites to help them foam泡沫 when they are beaten
Comets are still regarded with awe by some people.
