watershed

watershed
noun
  1. an area or ridge of land that separates waters flowing to different rivers, basins, or seas
    分水岭
    ■an event or period marking a turning point in a course of action or state of affairs
    分水岭;转折点;重要关头
    these works mark a watershed in the history of music.
    这些作品是音乐史上的一个分水岭。
    ■(Brit.)the time after which programmes that are regarded as unsuitable for children are broadcast on television
    (英)开始播放儿童不宜电视节目的时间
语源
  1. early 19th cent.: from water + shed in the sense 'ridge of high ground' (related to shed), suggested by German Wasserscheide
英语宝典
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