| 单词 | index species |
| 释义 | index speciesnoun : a plant or animal species so highly adapted to a particular kind of environment that its presence is sufficient indication that a habitat under investigation belongs to the kind to which the species is adapted |
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英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。