单词	rate of change
释义	rate of change noun phrase : a value that results from dividing the change in a function of a variable by the change in the variable velocity is the rate of change in distance with respect to time Word History First Known Use 1876, in the meaning defined above
随便看	blades bladesmith bladesmithing bladework blading bladings blads blady bladygrass blae blaeberries dying breed dying down dying for dying from dying of dying off dying on the vine dying out dying wish dyinger dyingest dyings dyirbales dyirbals

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