词典释义：
cover the surface of (a thing) with a coating
铺；覆盖；涂
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their fingernails were overlaid with silver or gold .她们的指甲涂着金色或银色的指甲油。
lie on top of
放在…上面
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a third screen which will overlay the others .将放在最上面的第三层滤网。
〈喻〉 （品质，感情）变得比（先前品质、感情）更显著
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his openness had been overlaid by his new self-confidence .他新取得的自信变得比他的坦诚更令人注目。
something laid as a covering over something else
覆盖物
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a durable, cost-effective floor overlay .耐用而划算的地板涂料。
a transparent sheet placed over artwork or something such as a map, giving additional information or detail
（置于图片、地图等上，载有更多信息或详情的）透明塑料膜。
a graphical computer display which can be superimposed on another
（可）叠加（于另一图形上的）计算机图形显示，叠加图形显示。
[mass noun]
【计算机】 覆盖。
[count noun]a block of code or other data transferred in such a way
覆盖数据。
past of
<Bold>OVERLIE</Bold>的过去式。