alternate

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【释义】：

Ⅰ v．(使)交替，轮流 Ⅱ a．交替的，交错的，轮流的

alternate attacks of chills and fever寒热往来

alternate chills and fever阵寒阵热

alternate spells(病，痛等)交替往来地出现

alternate spells of fever and chill寒热往来

alternate work and rest劳逸结合

If fever alternates with chills at regular intervals，it is malaria．寒战往来有定时，乃是疟疾。