单词	is
释义	isis /s, z, əz; strong ɪz/ Word Origin WORD ORIGINis Origin: Old English the third person singular of the present tense of be
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英语词典包含52748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。