coal

词语
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coal，英文单词，名词、动词，作名词时意为“煤；（尤指燃烧着的）煤块；木炭”，作动词时意为“供煤；采煤，提炼煤；把……烧成炭；加煤”。

例句

1、Gas-fired electricity is cheaper than coal.
天然气发电比煤便宜。
2、The iron teakettle was hissing splendidly over live coals.