impotentia

例句：

1. 1. The patient was declared incompetentto stand trial.
   病人被宣布无能力承担审判责任。
2. 2. The doctor said she hadimpotence due to her age.
   医生说她因为年龄大了而无力。
3. 3. The manwas found to be incapable ofperforming the task.
   发现那名男子无法完成这项任务。