mental artery

例句：

1. 1. He has a mental problem that affects his ability to concentrate.
   他有一个影响他集中注意力的精神问题。
2. 2. The child was mentally challenged by the traumatic event.
   这个孩子因为那次创伤性事件而精神上受到了挑战。
3. 3. Her mental state improved significantly after the surgery.
   手术后，她的精神状态显著改善。