科学家已经将癌症、心脏病及其他疾病与暴露在含有2型烯烃的环境里关联起来。
Exposure to type-2 alkenes in the environment has already been linked with cancer, heart disease, and other problems.
许多癌症的形成与环境有关，主要来自烟草、过度接触日光和工作场所中的危险物质，如化学溶剂和烟雾。
Many causes of cancer are environmental, largely from tobacco, excessive sun exposure and workplace hazards such as chemical solvents and fumes.
许多癌症的形成与环境有关，主要来自烟草、过度接触日光和工作场所中的危险物质，如化学溶剂和烟雾。就此而言，回避是最好的预防策略。
Many causes of cancer are environmental, largely from tobacco, excessive sun exposure and workplace hazards such as chemical solvents and fumes. Avoidance is the best prevention strategy here.
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