致癌物質 (zi3 ngaam4 mat6 zat1) — carcinogen in Cantonesezi˗₃致ngaamˎ₄癌matˍ₆物zatˉ¹質简 致癌物质Mandarin Pinyin: zhi4 ai2 wu4 zhi4Meaning of 致癌物質nouncarcinogen