late 14c., "one who or that lays" (especially stones, "a mason"), agent noun from lay (v.). Passive sense of "that which is laid over a surface" first recorded 1610s, but because earliest English use was in cookery, this is perhaps from French liue "binding," used of a thickened sauce. Layer cake attested from 1881.
layer (v.)
1832, from layer (n.). Related: Layered; layering.
实用例句
1. 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。
来自柯林斯例句
2. It was hard to see the colours under the layer of dust.
蒙了一层灰尘后颜色就很难看清了。
来自柯林斯例句
3. 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。
来自柯林斯例句
4. The upper layer of felt should overlap the lower.
毛毡的上层应与下层重叠。
来自柯林斯例句
5. The top layer of skin has to be grafted onto the burns.