1. The singular of 'bacteria' is 'bacterium'. bacteria的单数形式是bacterium。
2. He had a course of antibiotics to kill the bacterium. 他服了一疗程的抗生素来杀死细菌。
3. Lyme disease is caused by a bacterium transmitted to humans by deer ticks. 莱姆病是由鹿蜱传播给人类的一种细菌引起的。
4. Mediterranean monk seals are the only species of seal in the area where the bacterium was found. 地中海僧海豹是这个发现有细菌的地区中的唯一海豹物种。
5. This bacterium can flourish on the dried grain used for making two staples of the Nubian diet, beer and bread. 这种细菌可以在干谷物上滋生,而干谷物用于制造努比亚人日常饮食的两大主食:啤酒和面包。