Plains and lowlands are only interspersed near the confluence and in some valleys.Kast topography and sea erosion topography are everywhere.是什么意思_Plains and lowlands are only interspersed near the confluence and in some valleys.Kast topography and sea erosion topography are everywhere.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句