名詞 layer:

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

動詞 layer:

1. make or form a layer

1. This layer of rock contains a lot of flint.
   這一巖層中有大量燧石。
2. There is a fine layer of dust on the desk.
   桌子上有一層薄薄的塵土。
3. The pollution had destroyed ozone layer and caused many changes in weather.
   污染破壞了臭氧層，并引起了許多天氣變化。
4. Her husband is a brick layer.
   她丈夫是個砌磚匠。
5. There are several layers of meaning.
   有幾層不同的含意。

lay.er

n.（名詞）

One that lays:
放置者：從事鋪設(shè)工作的人：
例句：
a tile layer.
鋪瓦工

A hen kept for laying eggs.
下蛋雞：為生蛋而飼養(yǎng)的母雞

A single thickness of a material covering a surface or forming an overlying part or segment:
層：覆在表面的物質(zhì)或形成疊蓋的部分或部位：
例句：
a layer of dust on the windowsill; a cake with four layers.
窗臺上的一層灰塵；四層蛋糕

A usually horizontal deposit or expanse; a stratum:
地層：通常是水平的沉積物或擴展物；層：
例句：
layers of sedimentary rock; a layer of warm air.
多層的沉積巖；熱空氣層

A depth or level:
深度或?qū)哟危?/br>例句：
a poem with several layers of meaning.
有多層含義的詩歌

Botany A stem that is covered with soil for rooting while still part of the living plant.
【植物學(xué)】 壓條：將枝條埋在土中使其生根，而同時又是存活的母體植物的一部分
v.（動詞）
lay.ered,lay.er.ing,lay.ers
v.tr.（及物動詞）
To divide or form into layers:
使分開并形成層次：
例句：
layered gravel and charcoal to make a filter.
將砂礫和木炭分層以做成過濾器

To cut (hair) into different, usually overlapping lengths.
將（頭發(fā)）剪成不同層次，通常是疊蓋在一起的長度
Botany To propagate (a plant) by means of a layer.
【植物學(xué)】 用壓條法培育（植物）
v.intr.（不及物動詞）
To form or come apart as layers.
形成或分成層次
Botany To take root as a result of layering.
【植物學(xué)】 通過壓條法而生根