layer
单词辨析：
指某物表面上覆盖的薄薄的一层液体、粉末等。
The table was covered by a film of dust.
桌子上蒙着一层灰。
It can be clearly seen that there is a film of oil on the surface of the water in the cup.
可以明显地看到杯子里的水上面有一层油。
指某物表面所涂的很薄的一层涂料或其他物质。
another coat of paint
另一层涂料
two coats of varnish
两层清漆
指覆盖在某物表面上或夹在其他两物之间的一层材料或物质，可厚可薄。
There was a thick layer of dust on the furniture.
家具上蒙了一层厚厚的灰尘。
Why do you wear so many layers of clothing?
你怎么穿了这么多层衣服啊？
指使人视线模糊的一层薄薄的雾、云、烟等。
The top of the building was hidden beneath a veil of mist.
楼顶笼罩在薄雾中。
It was darker outside because the moon was hidden behind a veil of clouds.
月亮躲在薄薄的云层后面，外面就更黑了。
相关例句：
A fresh layer of snow covered the street
街上覆盖了一层新雪。
Critics and the public puzzle out the layers of meaning in his photos.
评论界和公众揭开了他照片中的重重深意。
Cover the base with a single layer of sponge fingers.
底部垫上一层海棉条。
By lifting and layering her hair, Michael created a lighter frame for her face.
通过把头发往上梳，增加层次感，迈克尔让她的脸型显得更为柔和。
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。
Layer the potatoes, asparagus and salmon in the tin
把土豆、芦笋和大麻哈鱼分层装入罐头内。