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Từ điển Oxford Advanced Learner 8th
coalface
coal·face [coalface coalfaces] BrE [ˈkəʊlfeɪs] NAmE [ˈkoʊlfeɪs] (also face) noun
the place deep inside a mine where the coal is cut out of the rock
•The miners had to crawl to reach the coalface.
Idiom: ↑at the coalface
See also: ↑face
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