An impairment is a problem in body function or structure; an activity limitation is a difficulty encountered by an individual in executing a task or action; while a participation restriction is a problem experienced by an individual in involvement in life situations.
损伤是身体功能或结构方面的问题；活动受限是人在执行任务或行动时遇到的困难；而参与的限制是参与个人生活时遇到的问题。