名词
中文翻译：前体物质
同义词：
['procarcinogen', 'precursor']
例句：
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1.The study found that procarcinogen exposure was associated with an increased risk of cancer.
研究发现，前体物质暴露与癌症风险增加有关。
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2. Procarcinogens are chemicals that can cause cancer when they are ingested or inhaled.
前体物质是那些在摄入或吸入时可能引发癌症的化学物质。
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3.Environmental factors such as pollution and smoking have been linked to the development of procarcinogens.
环境污染和吸烟等环境因素已被关联到前体物质的发展上。