Formaldehyde is a suspected carcinogen linked to nasal and lung cancer.
甲醛一直被怀疑是导致鼻癌及肺癌的致癌物质。
According to Pfizer, the questionable batches of Viracept contained an unusually high level of the compound ethyl methanesulfonate, or EMS, a suspected human carcinogen.
据辉瑞公司称,遭质疑的几批奈非那韦的甲基磺酸乙酯或EMS(一种可疑的人类致癌物质)超标。
There is one carcinogen in particular that researchers suspected for years contributed to human lung cancer.
多年以来研究人员猜测,有一种特别的致癌物质是导致人类得肺癌的罪魁祸首。
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