| 单词 | hard coal |
| 释义 | hard coal anthracite /ˈæn.θrə.saɪt/ noun [U] (ALSO ˌhard ˈcoal) ► F0 a very hard type of coal that burns slowly and produces a lot of heat with very little smoke and a small flameThesaurus+: ↑Fuels , ↑Petroleum products especially when used as fuel |
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