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1. 工作服：coverage 保险总额 | coverall 工作服 | covered floating roof tank 有固定顶的浮顶
2. 包罗万象的：coverage 复盖 | coverall 包罗万象的 | covered 隐蔽着的
3. 工：cover plate 盖板 | coverall 工 | covered roll 包覆罗拉
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noun
1. a loose-fitting protective garment that is worn over other clothing