underlayers的翻译，读音
释义：
(underlayer 的复数) n.下层, 底层,衬层
plural of underlayer
n. One who, or that which, underlays or is underlaid; a
lower layer.
n. A perpendicular shaft sunk to cut the lode at any
required depth.
plural of underlayer
n. One who, or that which, underlays or is underlaid; a
lower layer.
n. A perpendicular shaft sunk to cut the lode at any
required depth.