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Sigma KEE - Valley

谷

A Valley is an area of low-lying land flanked by higher ground. Valleys typically contain a stream or river flowing along the valley floor.

Relationships
Parents	土地形式	A LandForm is the class of geographically and/or geologically distinct areas that occur on Earth's surface, including mountains, hills, plains, valleys, deltas, and features of submerged land areas such as the ocean floor.
	低地地区	A LowlandArea is a land area lower than the surrounding region, and usually level land.