Dàbà jiànchéng hòu, xiàyóu de hóngshuǐ wèntí dédào le kòngzhì.
After the dam was built, the downstream flooding problem was brought under control.
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China's Three Gorges Dam (三峡大坝) on the Yangtze River is the world's largest power station by installed capacity. It's both a source of national pride and ongoing debate about environmental impact.