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Sdy18

May 26, 2026, 8:09 AM

Jiangjin, China

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Here is a detailed description of the video: The video shows a classroom setting. A man wearing glasses and a light blue polo shirt is standing in front of a whiteboard, pointing to a handwritten diagram with red marker. He appears to be giving a lecture or presentation. The diagram outlines the relationships between "Run off," "River," "Catchment Area," and "Water basin/watershed," along with related terms and formulas. In the foreground, partial views of students are visible. A black backpack sits on the desk in front of the students. The classroom appears to be indoors with artificial lighting.

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Sdy18

May 26, 2026, 8:09 AM

Jiangjin, China

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