eolian sand

例句：

1. 1. The eoliansand dunes are a natural wonder ofthe desert.
   风成沙丘是沙漠中的自然奇观。
2. 2. The eoliansand is soft and easy to walk on.
   风成沙柔软且易于行走。
3. 3. Theeolian sand was formed by thewind over millions of years.
   风成沙是由数百万年的风力作用形成的。