Much more is known about chemicals and cancer today than just 20 years ago, yet uncertainty about the risk of borderline carcinogens continues to hamper decisions . 今天人们对化学药剂和癌症的了解已比20年前增加了很多。可是，由于对致癌物的危险界限仍搞不清楚，这就妨碍了作出决定。
Eggs are cancerous , don t eat them ! - scientists 科学家：蛋是致癌物，吃不得也！
Studies on carcinogenetic mechanism of coom extracts 煤烟提取物致癌作用机制的研究
That smoking can cause cancer is a well - known fact 吸烟可能致癌是个众所周知的事实。
B : because of the dangers ; it causes cancer 是因为危险的关系；它会致癌。
The saturated fat in bacon also contributes to cancer 在烟肉里的饱和油脂也是可以致癌。
Hey , coach , what ' s " carcinogen " mean 嘿，教练“致癌物质”是什么意思？
And it is good source of essential oils 不仅是致癌的因素也是动脉硬化和老化的原因之一。
Because of the dangers ; it causes cancer 是因为危险的关系；它会致癌。
Dioxin chemicals causes cancer , especially breast cancer 二恶英化学品致癌，尤其是乳腺癌。
