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	bunkum bunny bunny slope bunraku bunsen burner bunt bunting Bunyan, John Bunyan, Paul buoy buoyancy buoyant buoyant force buoyantly bur burble burbs burden burdensome bureau bureaucracy bureaucrat bureaucratic bureaucratically Bureau of Alcohol, Tobacco and Firearms, the

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