sand

noun

1. 沙
   a substance that consists of very small fine grains of rock. Sand is found on beaches, in deserts, etc.
   1. a grain of sand
      一粒沙子
   2. Concrete is a mixture of sand and cement.
      混凝土是沙和水泥的混合物。
   3. His hair was the colour of sand.
      他的头发呈沙褐色。
   4. The children were playing in the sand (= for example, in a sandpit ) .
      孩子们正在玩沙子。
2. 沙滩
   a large area of sand on a beach
   1. We went for a walk along the sand.
      我们去沙滩上散了散步。
   2. children playing on the sand
      在沙滩上玩耍的儿童
   3. miles of golden sands
      绵延数英里的金色沙滩

verb

1. 用砂纸（或打磨机）打磨
   to make sth smooth by rubbing it with sandpaper or using a sander

1. N-UNCOUNT 沙;沙子
   Sand is a substance that looks like powder, and consists of extremely small pieces of stone. Some deserts and many beaches are made up of sand.
   1. They all walked barefoot across the damp sand to the water's edge.
      他们全都光着脚走过潮湿的沙地来到水边。
   2. ...grains of sand.
      沙粒
2. N-PLURAL (海滨等的)沙滩
   Sands are a large area of sand, for example a beach.
   1. ...miles of golden sands.
      绵延数英里的金色沙滩
3. VERB 用砂纸磨光(或擦净)
   If you sand a wood or metal surface, you rub sandpaper over it in order to make it smooth or clean.
   1. Sand the surface softly and carefully.
      用砂纸仔细而轻柔地打磨表面。
   2. Sand down means the same as sand .
      sand down 同 sand
   3. I was going to sand down the chairs and repaint them...
      我打算用砂纸把椅子打磨光洁后重新上漆。
   4. Simply sand them down with a fine grade of sandpaper.
      只要用细砂纸把它们打磨一下即可。
4. PHRASE 多变;动荡;曲折
   If you refer to the shifting sands of a situation, you mean that it changes so often that it is difficult to deal with.
   1. He had been a rock in the shifting sands of her existence.
      他一直是她曲折坎坷的生活中的主心骨。
   2. ...his shrewd tactical skills in the shifting sands of Arab politics.
      他在阿拉伯风云变幻的政局中的高明谋略

1. The camel's feet, well adapted for dry sand, are useless on mud.
   骆驼的蹄子虽然非常适合于在干沙上行走，碰到泥泞时却无计可施。
2. Too many golfers try to bash the ball out of sand. That spells disaster
   太多高尔夫球手都想把球从沙子里敲出来，结果酿成了一场灾难。
3. Sand blew in our eyes
   沙子吹进了我们的眼睛里。
4. The girls happily played in the sand and sea with buckets and spades.
   女孩们带着铲子和小桶在沙滩上快活地玩耍。
5. The two cars cartwheeled horrifyingly into the sand trap at the first corner.
   那两辆车在第一个拐弯处翻滚着跌入了沙坑，场面十分骇人。
6. Thomas was playing in a little fenced area full of sand.
   托马斯在一小块围起来的满是沙子的地上玩耍。
7. We walked to the furthermost point and then sat on the sand dunes.
   我们走到了最远处，然后坐在了沙丘上。
8. Manufactured glass is made by fusing various types of sand
   人造玻璃是将各种不同类型的沙子熔合在一起制成的。
9. He felt tiny bits of grit and sand peppering his knees.
   他感到细小的沙砾不断打在膝盖上。
10. She scooped up a handful of sand and let it trickle through her fingers.
    她抓起一把沙子，让它从指缝里一点点漏下来。
11. When the children come in covered in sand you can just hose them down.
    当孩子全身沾满沙子进门时，你可以直接用水龙带将他们冲洗干净。
12. She thought of the tide rushing in, covering the wet sand
    她想象潮汐涌来，淹没潮湿的沙滩。
13. An overdose of sun, sea, sand and chlorine can give lighter hair a green tinge.
    过量接触阳光、海水、沙粒和***会使浅色头发略呈绿色。
14. On beaches, keep your camera safe from sand by enveloping it inside a plastic bag
    在沙滩上时，将相机用塑料袋包裹起来以防止进沙子。
15. They all walked barefoot across the damp sand to the water's edge.
    他们全都光着脚走过潮湿的沙地来到水边。
16. Sand the surface softly and carefully.
    用砂纸仔细而轻柔地打磨表面。
17. He had been a rock in the shifting sands of her existence.
    他一直是她曲折坎坷的生活中的主心骨。
18. Pendergood had shovelled the sand out of the caravan.
    彭德古德把旅行拖车里的沙子铲了出来。
19. Rain had soaked into the sand.
    雨水渗入了沙地。
20. She spread a towel on the sand and lay on it
    她在沙滩上铺了一条毛巾，躺在上面。
21. Wash them in cold water to remove all traces of sand
    用冷水冲洗它们以清除所有的沙子。
22. The sand martin is a brown bird with white underneath
    崖沙燕是一种褐羽白腹的鸟。
23. Beach users have complained about people walking their dogs on the sand.
    海滩上的游客投诉有人在沙滩上遛狗。
24. Dry sand absorbs water.
    干沙吸收水分。
25. The shelterbelt kept the sand in check.
    防护林带挡住了风沙。
26. It's hard to walk on the soft sand.
    沙土地暄，不好走。
27. Water bubbled up through the sand.
    水从沙里冒出气泡。
28. They filtered the water through the sand.
    他们用沙子滤水。
29. Sand this fine will be just right.
    这样粗细的沙子最合适。
30. The children tumbled about in the sand pit.
    小孩在沙坑里翻滚着玩。

n.

bury/hide your head in the sand

• 采取鸵鸟政策；不正视现实；回避问题
  to refuse to admit that a problem exists or refuse to deal with it

(the) shifting sands (of sth)

• 变幻莫测；变化无常
  used to describe a situation that changes so often that it is difficult to understand or deal with it

noun

1. fortitude and determination
   1. he didn't have the guts to try it

   Synonym:    backbonegritgutsmoxiegumption

2. a loose material consisting of grains of rock or coral

verb

1. rub with sandpaper
   1. sandpaper the wooden surface

   Synonym:    sandpaper