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a quantity or sheet of something that lies over a surface or between surfaces 层；表层 - layer (of something)
A thin layer of dust covered everything. 所有的物品上都积了薄薄的一层灰尘。 Ducks have a thick layer of fat to keep them warm. 鸭子有一层厚厚的脂肪来保暖。 How many layers of clothing are you wearing? 你穿了几层衣服？ Sunlight thickens the outer layer of the skin. 阳光使皮肤外层增厚。 - in layers
The paint is applied in layers. 油漆是分层涂的。
Extra ExamplesBeneath the surface layer of the skin are several further layers. 在皮肤表层之下还有几层。 Everything was covered with a fine layer of dust. 每件东西都覆盖着一层薄薄的尘土。 He paints a base coat, allows it to dry, and then adds layers of paint. 他刷上一层底漆，晾干，然后又在上面刷了几层漆。 Mulch with a generous layer of peat or compost. 在根部覆盖上一层厚厚的泥炭或堆肥。 The body had been covered with a thin layer of soil. 身体上已经覆盖了薄薄的一层土。 The building is constructed in layers. 这座建筑是分层建造的。 The product is made from a single layer of plastic. 该产品用单层塑料制成。 The recipe calls for alternating layers of meat sauce and pasta. 制作方法要求肉酱和意大利面分层叠压。 The remains lay buried under layer upon layer of black earth. 遗址被黑土层层掩埋。 They put on thick hats and extra layers of clothing. 他们戴上厚厚的帽子，又额外加了几层衣服。 Use enough gravel to form a layer about 50mm thick. 用足够多的砾石铺上 50 毫米左右的一层。 We're flying just below a cloud layer at 33 000 feet. 我们正飞行在 3.3 万英尺高的云层下面。 a protective layer of black plastic 黑色塑料保护层 the upper layers of the earth's atmosphere 地球大气层的上层 Brush each layer of filo pastry with melted butter. 用融化的黄油刷每一层菲洛糕点。 The channel became silted up with layer upon layer of sludge. 河道被一层又一层的淤泥堵塞了。 The dessert is chocolate mousse between layers of coffee and chocolate sponge. 甜点是夹在咖啡和巧克力海绵层之间的巧克力慕斯。 This provides the waterproof top layer of the roof. 这提供了屋顶的防水顶层。
Oxford Collocations Dictionaryadjective- fine
- thin
- deep
- …
- form
- add
- apply
- …
- cake
- beneath a/the layer
- under a/the layer
- in layers
- …
- layer after layer
- layer upon layer
- layer (of something)
- layer (of something)
a level or part within a system or set of ideas 层次；阶层 There were too many layers of management in the company. 这家公司管理层级太多。 the layers of meaning in the poem 这首诗不同层次的含义 You've got to fight your way through layer upon layer of bureaucracy. 你必须通过层层官僚机构来奋斗。 It was claimed that the reforms would add layers to the EU's political structure. 据称，这些改革将增加欧盟政治结构的层次。
Extra ExamplesI decided to peel back the layers of this story. 我决心揭开这个故事的重重表象。 a layer of bureaucracy 官僚体制中的一个阶层 multiple layers of meaning 多层意义
Word OriginMiddle English (denoting a mason): from lay (verb) + -er. The sense ‘stratum of material covering a surface’ (early 17th cent.) may represent a different spelling of an obsolete agricultural use of lair denoting quality of soil.
