# crustacean
##### 词义
- 英:/krʌˈsteɪʃn/; 美:/krʌˈsteɪʃn/
- #词性/n 甲壳纲动物(如螃蟹、龙虾和褐虾)
##### 例句
- A hard bony or chitinous outer covering , such as the fused dorsal plates of a turtle or the portion of the exoskeleton covering the head and thorax of a crustacean .
- 硬壳,背甲,头胸甲一种硬骨质或甲壳质外部覆盖物,如海龟融为一体的背部板形器官,或甲壳纲动物覆盖头胸部的外骨骼部分。
- The teddy bear crab is a small crustacean covered in bushy , white bristles .
- 泰迪型螃蟹是小型甲壳纲动物,外面覆盖着浓密的的白色毛发。
- When the tide ebbs it 's a rock pool inhabited by crustaceans .
- 退潮时,它便成为甲壳动物居住的岩石区潮水潭。
##### 形态
- #形态/word_pl crustaceans