短语词组短语Colon -bacillus 大肠杆菌excrement colon bacillus 粪大肠杆菌chicken colon bacillus disease 鸡大肠杆菌病colon bacillus toxin 大肠杆菌毒素pig colon bacillus 猪大肠杆菌Colon bacillus to life -threatening 大肠杆菌足以致命 返回 colon bacillus