crustaceans是什么意思？

crustaceans

英[krʌs'teɪʃnz] 美[krʌs'teɪʃnz]

• n. 甲壳纲动物（如蟹、龙虾）( crustacean的名词复数 )；

例句

• small freshwater crustaceans with a shield-shaped carapace 长有盾牌状甲壳的小型淡水甲壳动物
• Sir. J . Lubbock has recently remarked , that several minute crustaceans offer excellent illustration of this law. 卢布克爵士最近指出, 小型甲壳类中有几种较好的例子,可作为这一法则的说明.
• These crustaceans provide a valuable food source for some fish. 这些甲壳纲动物是某些鱼类重要的食物来源.
• Old World genus of isopod crustaceans. 陆生等足甲壳类旧大陆鼠妇科的一属.
• The collection of small marine crustaceans of the order Euphausiacea are the principal food baleen whales. 形似虾的浮游甲壳动物;是长须鲸的主要食物来源.
• 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。

柯林斯高阶英汉双解学习词典释义

• 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.