英语词汇“four-color problem”的读音、翻译、释义、用法及例句-高考报名网

词汇	four-color problem
释义	four-color problem n.（名词 noun）【数】四色问题[猜想]（十九世纪中叶以来提出的一个问题或猜想,即是否能用四种颜色绘制地图而不让同一种颜色的地区相邻,1976年得到肯定的证明）
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