Therefore, the Sanmen Gorge is one of the crucial sites for the study and discussion of the formation and evolution of the Yellow River.
三门峡是研究和探讨黄河形成、演化的关键部位之一。
Therefore, the Sanmen Gorge is one of the crucial sites for the study and discussion of the formation and evolution of the Yellow River.
三门峡是研究和探讨黄河形成、演化的关键部位之一。
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