| 单词 | 占多数 |
| 释义 | 〔crab〕Any of various predominantly marine crustaceans of the division Brachyura within the order Decapoda, characterized by a broad, flattened cephalothorax covered by a hard carapace with a small abdomen concealed beneath it, short antennae, and five pairs of legs, of which the anterior pair are large and pincerlike.蟹：任一种数量占多数的海洋甲壳纲十足目短尾亚目动物，特征是生有一个上有硬壳盖住的宽而扁平的头部，下有一个腹部隐藏在内，有很短的触角和五对脚，其中前面的那对较大且呈钳状 |
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