你是我曾经吸到肺里的烟

你是我曾经吸到肺里的烟 ('Nǐ shì wǒ céng jīng xī dào fèi li de yān'). This roughly means 'You are the cigarette smoke I once inhaled into my lungs,' a metaphorical way of saying that 'someone' has had a deep and impactful influence upon them like how nicotine affects the lungs, perhaps even addictive.