coastal sand dune

• 海岸沙丘

coastal sand dune的用法和样例：

例句

1. The coastal dunes and the regions covered with eolian sands are the main regions with cultivated lands.
   这些海岸沙丘以及长乐东部风成沙覆盖的沙地分布区是该县主要的农业耕作区和经济开发区。