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1. Oxford American Dictionary

   watershed

   • IPA[ˈwôdərˌSHed]

   美式

   • n.
     an area or ridge of land that separates waters flowing to different rivers, basins, or seas.；an area or region drained by a river, river system, or other body of water.

   • noun: watershed, plural noun: watersheds

2. • 釋義

   n.

   名詞

   • 1. an area or ridge of land that separates waters flowing to different rivers, basins, or seas.
   • ▪ an area or region drained by a river, river system, or other body of water.
   • 2. an event or period marking a turning point in a course of action or state of affairs these works mark a watershed in the history of music