单词	alternating function
释义	alternating function noun mathematics : a function in which the interchange of two variables changes only the sign of the function Word History First Known Use 1880, in the meaning defined above
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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。