基本解释大便脓血英汉例句双语例句As the different ways of metastasis, the first group of symptoms of dysporia and bloody purulent stool was 57% and 29% respectively.本组报告7例转移性直肠癌,因转移途径不同,首发症状,以排粪困难占57%,脓血便29%。purulent and bloody stool更多例句