1. There is a strong possibility that the cat contracted the condition by eating contaminated pet food. 有一种极大的可能性就是那只猫吃了受污染的宠物食品而染上了病。
2. When a carpet was contaminated, less than 1% of the bacteria were transferred. 当地毯被污染时，只有不到1%的细菌会被转移。
3. Fields across Europe are contaminated with dangerous levels of the antibiotics given to farm animals. 欧洲各地的农田都被注射给农场动物的抗生素污染到了危险水平。
4. More than 80% of those cases can be attributed to contact with contaminated water and a lack of proper sanitation. 其中80%以上的病例可归因于接触了受污染的水和缺乏适当的卫生设施。
5. Scientists therefore propose using sunflowers for decontamination wherever there are radioactively contaminated ponds. 因此，科学家建议，只要有受放射性污染的池塘，就可以用向日葵来消毒。
