水土流失: coastal erosionerosion lossland erosionloss by runoff of soilloss by runoff soilloss of soilsoil and water lossessoilerosionwater and soil erosionwater and soil losswater loss and soil ero
治理沙地和水土流失问题: tackle the problems of sand and soil erosion
蚀: Ⅰ动词1.(损失; 亏耗) lose 短语和例子亏蚀 lose (money) in business; 听说他做生意蚀了本。 i hear that he is losing by his business.2.(腐蚀) erode; corrode 短语和例子风雨侵蚀 erosion by wind and rain; 锈能蚀铁。 rust corrodes iron.