coalfields

美 [ˈkoʊlˌfild]英 [ˈkəʊlˌfiːld]
  • n.煤田

复数:coalfields

coalfieldscoalfields

coalfields

煤田

threshold population 临界人口 - 豆丁网 ... clusters 群集 coalfields 煤田 coal-mining in the UK 英国的采煤业 ...

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