| 单词 | crustacean |
| 释义 | crust·aceanBrE /krʌˈsteɪʃn/ NAmE /krʌˈsteɪʃn/ noun (specialist ) any creature with a soft body that is divided into sections , and a hard outer shell . Most crustaceans live in water . Crabs , lobsters and shrimps are all crustaceans 甲壳动物（如螃蟹、龙虾和小虾） ➡ compare shellfish |
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