The region of flow produce is loose embankment and the flat roof, the gully erosion chain is the main cause of the sediment yield increase.是什么意思_The region of flow produce is loose embankment and the flat roof, the gully erosion chain is the main cause of the sediment yield increase.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句