单词	broad-spectrum
释义	broad-spectrum adjective broad-spec·​trum ˈbrȯd-ˈspek-trəm  1 : effective against a wide range of organisms (such as insects or bacteria) a broad-spectrum antibiotic 2 : effective in protecting skin from ultraviolet radiation by absorbing or blocking both UVA and UVB rays broad-spectrum sunscreens Word History First Known Use 1950, in the meaning defined at sense 1 Medical Definition broad-spectrum adjective 1 : effective against a wide range of organisms (as insects or bacteria) broad-spectrum antibiotics compare narrow-spectrum 2 : effective in protecting skin from ultraviolet radiation by absorbing or blocking both UVA and UVB rays broad-spectrum suncreen
随便看	hardscrabble hardscrabbler hardscrabblest hardship hardships hardstand hardstanding hardstandings hardstands hardstem bulrush hardt's pine hardtack hardtacks hardtail hardtop hardtops hardware hardware cloth Eluru elusion elusions elusive elusively elusiveness elusivenesses

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