以下为句子列表：
英文: Melamine is the new scam of choice, they say, because urea another nitrogen-rich chemical — is illegal for use in pig and poultry feed and can be easily detected in China as well as in the United States.
中文: 三聚氰胺是新的骗局，他们说，由于含有尿素氮的化学品是禁止在猪和家禽饲料中使用的，无论在中国或者是美国，都很容易被检测出来。
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