[{"role": "user", "content": "I'm trying to describe a moment of nervousness in Italian, and I'm not sure how to translate the sentence 'He bit his lip.' Can you help me with that?"}, {"role": "assistant", "content": "The translation of 'He bit his lip' in Italian is 'Si morse il labbro.' This is a common Italian expression used to describe a moment of nervousness, anxiety, or concentration."}]