overlay
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英 [əʊvə'leɪ]
美['ovəlɛi]
- n. 覆盖图；覆盖物
- vt. 在表面上铺一薄层，镀
英英释意
- 1. 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
