英语词汇“coal ball”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	coal ball
释义	coal ball noun : a nodule found in coal usually composed of calcite or silica and carbonaceous matter and having fragmentary or microscopic plant remains
随便看	gag line gag order gag rein gag resolution gag rule gag-reined gaga gaga (over) gaga over gagaer gagaest gagaku gagakus Gagarin gage gage block gage green gage plate gaged gageite gager gagers gages gagged gagger

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coal ball