fat sand

例句：

1. 1.The beach is covered in fine sand.
   海滩上铺满了细沙。
2. 2. The car was buried under a layer of fat sand.
   汽车被一层厚厚的细沙埋住了。
3. 3. The sandy beach is perfect for building sandcastles.
   细沙海滩非常适合堆沙堡。