His tainted heart 他的心被污染
A little mad cow and E.coli in tainted beef here, a little heart disease and cancer there.
吃肉不是这儿有疯牛病和大肠杆菌污染的牛肉，就是那儿有心脏病和癌症。
When you heard about the recent outbreak of infections caused by Salmonella-tainted tomatoes, odds are you were surprised a mere vegetable was at the heart of the scare.
如果你听说最近受沙门氏菌感染的西红柿引起感染大范围发作，十有八九你会对引起这场恐慌的罪魁祸首居然是区区一种蔬菜感到吃惊。
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