词汇	污慢
释义	污慢 wū màn污穢怠忽。
随便看	river mouth regulation rivermouths river-mouths river mouth shoal river mud river navigation river navigation radar river navigations river-nearby farmland river net River Net Extraction river network river-network River network area river network area of plain river network areas river network change river network characteristic river network density river network environment river network flow river network generalization river network generalize river network management river network model