a separate introductory section of a literary or musical work
序言；序诗；序曲
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the suppressed prolog to Women in Love .小说《恋爱中的女人》中那压抑的序言。
an event or action that leads to another event or situation
引出某种情况的事件（或行动）；开端序幕
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the events from 1945 to 1956 provided the prolog to the post-imperial era .１９４５到１９５６年发生的一系列事件拉开了后帝国时代的帷幕。
(in professional cycling)a short preliminary time trial held before a race to establish a leader
（职业自行车赛前举行的）领头车选拔赛。
the actor who delivers the prolog in a play
（在剧中）念开场白的演员。
【计算机】 Prolog语言，逻辑程序设计语言。
"Middle English： from Old French,via Latin from Greek