短语词组短语Balantidium e coli 结肠小袋绦虫Balantidium ȵ coli 结肠小袋绦虫cyst of balantidium coli 结肠小袋纤毛虫包囊infection by balantidium coli 结肠小袋虫感染trophozoite of balantidium coli 结肠小袋纤毛虫滋养体 返回 balantidium coli