“盐或煤”例句

单词 盐或煤
例句 DEFINITIVE EXAMPLES 权威例句〔mineral〕A substance, such as stone, sand, salt, or coal, that is extracted or obtained from the ground or water and used in economic activities.矿物:一种物质,如石头、沙子、盐或煤,从土地或水中提取或获得,用于经济运行中美国传统

 

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