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