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首页 - 英汉词典 - B字开头的单词或词组 - black coal

英语解释

black coal

汉语翻译

【机】黑煤

black coal例句

A dense black coal that takes a high polish and is used for jewelry.
黑玉，贝褐炭一种用作宝石的很亮的深黑色碳物质

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