layer

noun

1. 层；表层
   a quantity or thickness of sth that lies over a surface or between surfaces
   1. A thin layer of dust covered everything.
      所有的物品上都积了薄薄的一层灰尘。
   2. How many layers of clothing are you wearing?
      你穿了几层衣服？
2. 层次；阶层
   a level or part within a system or set of ideas
   1. There were too many layers of management in the company.
      这家公司管理层太多。
   2. the layers of meaning in the poem
      这首诗不同层次的含义

verb

1. 把…分层堆放
   to arrange sth in layers
   1. Layer the potatoes and onions in a dish.
      把土豆和洋葱分层放在盘子里。
   2. Her hair had been layered (= cut to several different lengths) .
      她的头发已分层剪短。

1. N-COUNT 层
   A layer of a material or substance is a quantity or piece of it that covers a surface or that is between two other things.
   1. A fresh layer of snow covered the street...
      街上覆盖了一层新雪。
   2. ...the depletion of the ozone layer...
      臭氧层的损耗
   3. Arrange all the vegetables except the potatoes in layers.
      把除土豆外的所有蔬菜分层放置。
2. N-COUNT 层次；阶层；等级
   If something such as a system or an idea has many layers, it has many different levels or parts.
   1. ...an astounding ten layers of staff between the factory worker and the chief executive...
      工厂工人和首席执行官之间10个等级的巨大差距
   2. Critics and the public puzzle out the layers of meaning in his photos.
      评论界和公众揭开了他照片中的重重深意。
3. VERB 分层放置
   If you layer something, you arrange it in layers.
   1. Layer the potatoes, asparagus and salmon in the tin...
      把土豆、芦笋和大麻哈鱼分层装入罐头内。
   2. By lifting and layering her hair, Michael created a lighter frame for her face.
      通过把头发往上梳，增加层次感，迈克尔让她的脸型显得更为柔和。

1. The baby whale develops a thick layer of blubber to protect it from the cold sea.
   幼鲸长出一层厚厚的鲸脂，以抵御寒冷的海水。
2. Slowly a thick layer of fat builds up on the pan's surface.
   慢慢地，平底锅表面积起了一层厚厚的油脂。
3. They discovered how to form the image in a thin layer on the surface.
   他们发现了如何在表面薄薄的一层上形成影像。
4. I could see a thick layer of dust on the stairs
   我可以看见楼梯上有一层厚厚的灰尘。
5. Cover the base with a single layer of sponge fingers.
   底部垫上一层海棉条。
6. It is wise to start infilling with a layer of gravel for drainage.
   先铺上一层利于排水的砾石是个明智的做法。
7. A fresh layer of snow covered the street
   街上覆盖了一层新雪。
8. Arrange all the vegetables except the potatoes in layers.
   把除土豆外的所有蔬菜分层放置。
9. Critics and the public puzzle out the layers of meaning in his photos.
   评论界和公众揭开了他照片中的重重深意。
10. Layer the potatoes, asparagus and salmon in the tin
    把土豆、芦笋和大麻哈鱼分层装入罐头内。
11. By lifting and layering her hair, Michael created a lighter frame for her face.
    通过把头发往上梳，增加层次感，迈克尔让她的脸型显得更为柔和。
12. The upper layer of felt should overlap the lower.
    毛毡的上层应与下层重叠。
13. Chemicals form a protective layer that resists both oil and water-based stains.
    化学物质形成了一个抗油污和水渍的保护层。
14. They will press for international action to safeguard the ozone layer
    他们将督促国际社会采取行动保护臭氧层。
15. A thick layer of wax was spread over the surface
    表面涂上了厚厚的一层蜡。
16. A layer of smoke hung low in the stale air.
    一层烟雾低悬在污浊的空气中。
17. Sensitive Cream will not strip away the skin's protective layer
    敏感肌肤专用面霜不会破坏皮肤表面的保护层。
18. Ozone forms a protective layer between 12 and 30 miles above the Earth's surface.
    臭氧在地球表面上方12到30英里处形成一个保护层。
19. A thin layer of topsoil was swept away.
    薄薄的一层表土被冲走了。
20. A plastic surgeon can remove the top layer of skin.
    整形外科医生可以除去最表层的皮肤。
21. A thin layer of ice formed over the lake.
    湖面上凝结了一层薄冰。
22. The branches are weighed down by a heavy layer of snow.
    树枝都被厚雪压弯了。
23. When the Nile is in flood, it deposits a layer of mud on the fields.
    尼罗河泛滥时，在田野上沉积下一层泥。
24. When the flood subsided, it left a layer of mud in the fields.
    洪水过后，地里淤积了一层泥浆。
25. After the wind, there was a layer of dust on the desk.
    大风过后，桌上落了一层灰。
26. Airplanes drag along a very thin shield of motionless air known as a boundary layer.
    飞机曳着一层很薄的紧贴机面不动的空气一道向前运动，这层空气叫做附面层。
27. Simple cuboidal epithelium is a single layer of cells whose width and height are approximately equal.
    单层立方上皮由单层细胞组成，细胞的宽度和高度近似相等。
28. In order to minimize the boundary layer effects, the nozzles were made as short as possible.
    为了减少附面层效应，喷嘴做得尽可能地短些。
29. The desk is covered with a thick layer of dust.
    桌上积了厚厚的一层灰尘。
30. The ozone layer surrounding the earth protects our skin from being hurt by the ultraviolet rays.
    围绕地球的臭氧层保护着我们的皮肤免受紫外线的伤害。

  film coat layer veil【导航词义：层】

  film n. 薄层，薄膜

〔辨析〕指某物表面上覆盖的薄薄的一层液体、粉末等。

  coat n. 涂层，覆盖物

〔辨析〕指某物表面所涂的很薄的一层涂料或其他物质。

  layer n. 表层；层

〔辨析〕指覆盖在某物表面上或夹在其他两物之间的一层材料或物质，可厚可薄。

  veil n. 薄层

〔辨析〕指使人视线模糊的一层薄薄的雾、云、烟等。

noun

1. thin structure composed of a single thickness of cells

2. a hen that lays eggs

3. single thickness of usually some homogeneous substance
   1. slices of hard-boiled egg on a bed of spinach

   Synonym:    bed

4. an abstract place usually conceived as having depth
   1. a good actor communicates on several levels
   2. a simile has at least two layers of meaning
   3. the mind functions on many strata simultaneously

   Synonym:    levelstratum

5. a relatively thin sheetlike expanse or region lying over or under another

verb

1. make or form a layer
   1. layer the different colored sands