[{"role": "user", "content": "I'm trying to describe my friend's drinking habits to an Italian colleague, but I'm not sure how to express it - can you help me translate the sentence 'He's a teetotaller' into Italian?"}, {"role": "assistant", "content": "The translation of 'He's a teetotaller' in Italian is 'Lui \u00e8 astemio.' This sentence accurately conveys that your friend abstains from drinking alcohol."}]