N-COUNT 甲壳纲动物(如螃蟹、龙虾和褐虾) A crustacean is an animal with a hard shell and several pairs of legs, which usually lives in water. Crabs, lobsters, and shrimps are crustaceans. 甲壳纲动物(如螃蟹、龙虾和褐虾)
Word Link
Word Link
crust ≈ hard covering : crust, crustacean, encrusted