请求式分段

price elasticity of demand

downward sloping demand curve【统计】

AOD (audio-on-demand)

blackmail【法】;demand with menaces【法】;extortion【法】

brisk demand

note at demand

inland revenue demand note【税收】;tax return【税收】;tax roll【税收】

demand note【税收】;paying-in slip【税收】;