2. She is suffering from senile dementia. 她受老年痴呆症折磨。
3. It tottered on the borders of senile decay. 它在衰老的边缘摇摇欲坠。
4. Nearly senile and desperate for any way to establish order in the fractious environment, Hindenburg fell prey to intriguers. 兴登堡已近乎衰老,迫切希望在这个动荡不安的环境中找到建立秩序的任何方法,因此沦为了奸臣们的猎物。
5. Senile old man with out any foresights. 这是没有远见的人啊。