layer
n. 层, 产卵鸡, 放置者 vt. 分层堆积, 压植 [计] 层
发音
词形变化
教材释义与例句
把…分层堆放；借助压条法；生根繁殖；将（头发）剪成不同层次
形成或分成层次；通过压条法而生根
释义与例句
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1.
A single thickness of some material covering a surface.
层
Wrap the loaf in two layers of aluminum foil before putting it in the oven.
After the first coat of paint dried, he applied another layer.
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2.
A single thickness of some material covering a surface.
An item of clothing worn under or over another.
It's cold now but it will warm up this afternoon. Make sure you wear layers.
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3.
A (usually) horizontal deposit; a stratum.
I find seven-layer cake a bit too rich.
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4.
One of the items in a hierarchy.
mired in layers of deceit
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5.
One in a stack of (initially transparent) drawing surfaces that comprise an image; used to keep elements of an image separate so that they can be modified independently from one another.
计算机 工程 数学 -
6.
One of the seven network switch pieces in the Open Systems Interconnection model: application, presentation, session, transport, network, data link, and physical.
计算机 工程 数学 -
7.
An alternative keymap accessed through a modifier key or toggle.
计算机 工程 数学 -
1.
A person who lays anything, such as tiles or a wager.
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2.
A mature female bird, insect, etc. that is able to lay eggs.
As for which hen we'll cull for next Sunday's dinner, we certainly won't eat Henrietta yet — she's still a prime layer.
When dealing with an infestation of headlice, the first step is to eliminate the layers.
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3.
A mature female bird, insect, etc. that is able to lay eggs.
A hen kept to lay eggs; a breed of chicken bred to maximize laying output.
We keep a flock of layers and flock of broilers.
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4.
A shoot of a plant, laid underground for growth.
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1.
To cut or divide into layers.
及物/不及物 -
2.
To arrange in layers.
及物/不及物Layer the ribbons on top of one another to make an attractive pattern.
词汇关系
相关短语
词源
Appears at first glance to be from Middle English leyer, leyare (“a layer of stones or bricks”), equivalent to lay + -er. In which case, ultimately identical to etymology 2 below. For the pronunciation compare prayer. However, this word layer (referring to a thickness of a material covering a surface) has also been argued to be from a respelling of an obsolete sense of the word lair that was once used by farmers, which had to do with soil. The connecting sense between the usual meaning of lair and the specialised farming meaning was: an area where cows typically rest, the ground being fertilised by their waste. Related to lie, ledger.
来源：wiktionary