出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第259页（220字）
比喻人公正无私，不讲私请，例包拯是一位铁面无私、秉公办案的清官，因此人称包青天。
Bao Zheng was an impartial and incorruptible magistrate and was just and fair too．Hence，he was given the name of Bao the Upright．