sandes

• The floor has been sanded smooth .
  地板已用砂纸磨光。
• The beach was smooth and firm, and the sand yellow .
  海滩平坦而坚实，沙粒黄澄澄的。
• They walked barefoot on the damp hard sand .
  他们赤着脚在潮湿的硬梆梆的沙滩上走着。
• Some children were digging in the sand with wooden spades .
  有些孩子在用木铲挖沙子。
• It 's hard to walk on the soft sand .
  细沙路不好走。
• Sand particles gradually wear down .
  砂子逐渐磨损。
• Uranium coats sand grains .
  铀被覆盖在砂岩颗粒上。
• Several other sand crackers have been built since then .
  以后又建了几个别的砂子裂解炉。
• Detritus usually consists of gravel, sand and clay .
  岩屑通常是由砂砾，沙和粘土组成的。
• I wandered down to the beach and sprawled out on the sand .
  我溜达到海边，仰天躺在沙滩上。