滞洪区 zhìhóngqū flood detention area Definitions Defs Origin Strokes Stroke Words Sentences Sents 滞洪区 滯洪區 zhìhóngqū flood detention area low-lying land or lake used to temporarily store and hold back floodwaters to reduce peak flow
滞洪区 滯洪區 zhìhóngqū flood detention area low-lying land or lake used to temporarily store and hold back floodwaters to reduce peak flow
