一支烟毁了哥一断情伤了姐
[yī zhī yān huĭ le gē yī duàn qíng shāng le jiĕ]
One cigarette ruined me, and a breakup broke her. It paints the scene where addiction to harmful habits like smoking and emotional distress from separation have profound impacts on siblings or close friends' lives—one being affected physically while another emotionally.