carcinogenic substance

例句：

1. 1. The studyfound that exposure to certain carcinogenicsubstances can increase the risk of cancer.
   研究发现，暴露于某些致癌物质会增加患癌症的风险。
2. 2. The government has banned the saleof many carcinogenic substances inorder to protect public health.
   政府已经禁止销售许多致癌物质，以保护公众健康。
3. 3.The researcher warned that long-termexposure to carcinogenic substances couldlead to serious health problems.
   研究人员警告说，长期暴露于致癌物质可能会导致严重的健康问题。