人格分裂

例句：

1. 1. The patient's behavior was so erratic that it caused a lot of confusion.
   病人的行为如此不稳定，导致许多人感到困惑。
2. 2. He has been diagnosed with a split personality disorder.
   他已被诊断出患有分裂人格障碍。
3. 3. The story is about a man who suffers from a split personality disorder.
   这个故事讲述的是一个患有分裂人格障碍的男人。