| 单词 | sludge |
| 释义 | sludge n. 1. thick greasy mud. 2. muddy or slushy sediment. 3. sewage. 4. Mech. an accumulation of dirty oil, esp. in the sump of an internal-combustion engine. 5. Geol. sea-ice newly formed in small pieces. 6. (usu. attrib.) a muddy colour (sludge green). Derivatives sludgy adj. Etymology: cf. SLUSH |
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