culmination

culmination
noun
  1. [in sing.]the highest or climactic point of something, especially as attained after a long time
    (尤指通过长期努力达到的)顶点;高潮
    the deal marked the culmination of years of negotiation.
    协议标志着数年谈判的胜利告终。
    ■(archaic or Astrology)the reaching of the meridian by a celestial body
    (古 占星)中天
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