a layer of decorative material (such as gold leaf or wood veneer) applied over a surface
protective covering consisting, for example, of a layer of boards applied to the studs and joists of a building to strengthen it and serve as a foundation for a weatherproof exterior 同义词:sheathing, overlayer,
kill by lying on; "The sow overlay her piglets" 同义词:overlie,
put something on top of something else; "cover the meat with a lot of gravy" 同义词:cover,