[{"role": "user", "content": "I'm trying to express the idea that someone appears older than they actually are, could you help me translate the sentence 'He can't be young' into Italian?"}, {"role": "assistant", "content": "The translation of 'He can't be young' into Italian is 'Lui non pu\u00f2 essere giovane.' This sentence conveys the idea that the person in question appears to be older than their actual age, which is what you were trying to express."}]