常見(jiàn)例句雙語(yǔ)例句The classification of coastal dunes is the most important basic problem in the research on the landscape of the wind drift sand in coastal region.海岸沙丘分類一直是海岸風(fēng)沙地貌研究的重要基礎(chǔ)問(wèn)題之一。 返回 wind drift sand region