间接吸烟也可以致命。fatal“致命的,灾难性的”,例如:fatal injuries致命伤。harmful“有害的”,例如:Smoking is harmful to health.吸烟有害健康。poisonous“有毒的”, 例如:Some mushrooms are extremely poisonous.有些蘑菇有剧毒。annoying“讨厌的”,例如:It is annoying that there is no hot water.没热水,真伤脑筋。只有fatal意思上和deadly最接近。