单词	crustacean
释义	crustaceancrustacean /krʌˈsteɪʃən/ noun [countable] Etymology ETYMOLOGYcrustacean Origin: 1800-1900 Modern Latin crustaceus, from Latin crusta; ➔ CRUST science, biology an animal such as a lobster or a crab that has a hard outer shell and several pairs of legs, and usually lives in water—crustacean adjective
随便看	derail derailleur derailment deranged derangement derby deregulate deregulation derelict dereliction deride de rigueur derision derisive derisively derisorily derisory derivation derivative derive derived character dermatitis dermatologist dermatology dermis

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