layer

名词 layer:

1. single thickness of usually some homogeneous substance
   同义词：bed
2. a relatively thin sheetlike expanse or region lying over or under another
3. an abstract place usually conceived as having depth
   同义词：level, stratum
4. a hen that lays eggs
5. thin structure composed of a single thickness of cells

动词 layer:

1. make or form a layer

1. This layer of rock contains a lot of flint.
   这一岩层中有大量燧石。
2. There is a fine layer of dust on the desk.
   桌子上有一层薄薄的尘土。
3. The pollution had destroyed ozone layer and caused many changes in weather.
   污染破坏了臭氧层，并引起了许多天气变化。
4. Her husband is a brick layer.
   她丈夫是个砌砖匠。
5. There are several layers of meaning.
   有几层不同的含意。

lay.er

n.（名词）

One that lays:
放置者：从事铺设工作的人：
例句：
a tile layer.
铺瓦工

A hen kept for laying eggs.
下蛋鸡：为生蛋而饲养的母鸡

A single thickness of a material covering a surface or forming an overlying part or segment:
层：覆在表面的物质或形成叠盖的部分或部位：
例句：
a layer of dust on the windowsill; a cake with four layers.
窗台上的一层灰尘；四层蛋糕

A usually horizontal deposit or expanse; a stratum:
地层：通常是水平的沉积物或扩展物；层：
例句：
layers of sedimentary rock; a layer of warm air.
多层的沉积岩；热空气层

A depth or level:
深度或层次：
例句：
a poem with several layers of meaning.
有多层含义的诗歌

Botany A stem that is covered with soil for rooting while still part of the living plant.
【植物学】 压条：将枝条埋在土中使其生根，而同时又是存活的母体植物的一部分
v.（动词）
lay.ered,lay.er.ing,lay.ers
v.tr.（及物动词）
To divide or form into layers:
使分开并形成层次：
例句：
layered gravel and charcoal to make a filter.
将砂砾和木炭分层以做成过滤器

To cut (hair) into different, usually overlapping lengths.
将（头发）剪成不同层次，通常是叠盖在一起的长度
Botany To propagate (a plant) by means of a layer.
【植物学】 用压条法培育（植物）
v.intr.（不及物动词）
To form or come apart as layers.
形成或分成层次
Botany To take root as a result of layering.
【植物学】 通过压条法而生根