pit coal
(dated, inorganic chemistry) Any borane that has more hydrogen atoms than another that has the same number of boron atoms
melioidosis
Coal dug from a pit, not charcoal.
(fandom slang) An object sought by a character in a story in order to achieve some objective, having little purpose beyond advancing the plot.
鉱夫たちは坑内で掘られた石炭を手押し車に積んで地上へ押し上げた。
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DiQt
Free
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