Give up smoking, avoid second-hand smoke: Cigarettes contain not only dioxins but also the even more potent carcinogen and suspected environmental hormone benzopyrene.
四、戒菸與遠離二手菸：香菸中除含有戴奧辛，還含有毒性更強的致癌物質與疑似環境荷爾蒙的苯比林。