单词	gill cavity
释义	gill cavity noun variants or gill chamber : the space between the gill arches and the gill cover into which the gill filaments project Word History Etymology gill entry 3
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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。