Noun:

1. class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas

Crusti克鲁斯蒂crustn.外壳；坚硬的外壳；面包皮vt.盖以硬皮vi.结硬皮crustal extension地伸缩crustal detachment地壳拆离crustaceous lichen壳状地衣crustal earthquake地壳地震Crustulina guttatan.星斑距跗蛛crustal shortening地壳缩短crustal components地壳物质组成crusta phlogistica[医] 血块黄层, 血沉棕黄层Crustal anisotropy地壳各向异性Crustal correction地壳校正

1. Crawfish, like shrimp or lobsters, belong to the scientific class Crustacea.
   小龙虾和虾或龙虾一样，在科学上属于甲壳纲动物。