名词
中文翻译：煤渣
同义词：
['coke', 'slag例句：1. The coal mine is producing a lot of coalsack.（煤矿正在生产大量的煤炭碎片。）2. The coalsack was used as fuel for the old stove.（煤炭碎片被用作旧炉子的燃料。）']
例句：
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1. The coal mine is producing a lot of coalsack.
煤矿正在生产大量的煤炭碎片。
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2. The coalsack was used as fuel for the old stove.
煤炭碎片被用作旧炉子的燃料。
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3.The coalsack was thrown into the river to prevent pollution.
煤炭碎片被扔进河里以防止污染。