(1) [watershed]: a mountain separating two water bodies (2) [watershed]: a high watershed ridge or profile between two basins or watersheds. Also known as watershed (3): a ridge or boundary line (4) that separates the drainage areas of two waterways or two coasts [boundary; Boundary]: It is often used to describe the boundary between different things or between different stages of the same thing. Detailed explanation is also called "watershed". 1. The dividing line of the river. Most of them are bounded by mountains, hence the name. Li Daoyuan of the Northern Wei Dynasty wrote in "Notes on Water Classics: The Water of Canglang": "To the east of the tomb, all the water flows eastward; West of the tomb, water flows west. That is, its topographic source. Therefore, the custom takes burial as a watershed. " Tang Yuan Zhen's poem "Watershed": "Cui Wei Watershed, and Yunping compete. There is water in the world, and things lean with the trend. " Metaphor is the dividing line between two things. Ling Ke's showdown to the old man: "1949 is a watershed in the history of China, which declared the end of the old era and the beginning of a new era." Chapter 11 of Zhu Guangqian's Poetics: "Historians often divide poems into one section. The Tang Dynasty fell into another section, as if thinking that there was a clear dividing line between the two sections. "
Word decomposition
The explanation of separation is divided into two parts: separation. Divide. Division (division range). Clear dividing line. Piecewise analysis. Decomposition. Take out or produce a part from the whole: distribute. Share the troubles. Distraction and trouble. An independent part of an organization: a division. Branches (clouds). Separation: separation. Separation. Separate.