[[{"role": "user", "content": "I'm trying to understand an idiomatic expression and I'm stuck on the phrase \"Tom bit his lip.\" Can you help me translate it into Italian?"}, {"role": "assistant", "content": "The phrase \"Tom bit his lip\" is an idiomatic expression that means Tom is trying not to say something or is holding back his emotions. The correct translation into Italian is \"Tom si \u00e8 morso il labbro.\""}]]