layer
UK ['leɪ.ər] US [-ɚ] noun countable
IMPROVER
■a level of material, such as a type of rock or gas, which is different from the material above or below it, or a thin sheet of a substance 层；涂层•the ozone layer臭氧层 •A thick layer of clay lies over the sandstone.沙岩上面有一层厚厚的黏土。 •There was a thin layer of oil on the surface of the water.水面上有一层薄薄的油膜。 •We stripped several layers of paint off the door.我们从门上剥落了好几层漆。
UK ['leɪ.ər] US [-ɚ] verb transitive
■to arrange something in layers 把…按层排列，把…分层放置•Layer the pasta with slices of tomato.把番茄片分层摆放在义大利粉里。 •potatoes layered with onions马铃薯夹洋葱片 |