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
随便看	doubtlessly doubtlessness doubtlessnesses doubts doubtsome douc douce doucely doucepere doucets douceur douceurs douche douche bag douchebag douched douches douchey douching doucine doucines doucs doudle douf doug

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