an inflammatory disorder of the lower intestinal tract,usually caused by a bacterial,parasitic,or protozoan infection and resulting in pain,fever,and severe diarrhea,often accompanied by the passage of blood and mucus

• 一种下肠道的炎症，主要由细菌、寄生虫或原生动物传染所致，患者感到疼痛、发烧和严重腹泻，并伴有排血和粘液