敬请翻译：People sometimes hold their chin when they are concentrating hard.
问题描述：
敬请翻译：People sometimes hold their chin when they are concentrating hard.
答
当人们专心思考问题,有时候会托着下巴,chin下巴 concentrate 专心谢谢你的解答！那么接下来：Holding their arms means they are anxious. 又该怎样翻译才合适呢？当抱紧双臂时意味着正在焦虑