insane person

例句：

1. 1. He was so insane with excitement that he couldn't control himself.
   他因为兴奋过度而无法控制自己。
2. 2.The patient was considered insane for his behavior.
   这位病人因其行为被认为是精神病患者。
3. 3.The scientist was insanely obsessed with the research.
   这位科学家对研究有着极度的痴迷。