Aila, a 10-year-old capuchin monkey, retrieves a compact disc from inside a cd player as she demonstrates the tasks that trained monkeys can accomplish for the disabled at the 'Helping Hands: Monkey Helpers for the Disabled' organization's 'monkey college' facility in Boston in this photograph taken May 18, 2004. The organization, which has already trained more than 93 monkeys to live with and assist severely disabled or paralyzed people, hopes to enroll many more student monkeys in its 2-3 year 'monkey college' training program and then provide them to the disabled for assistance. REUTERS/Jim Bourg/FEATURE/LIFE-MONKEYS

词汇：

capuchin 僧帽猴一种 悬猴属长尾猴，原产于中美洲和南美洲，头上有类似风帽的一簇毛发

retrieve v.重新得到；找回；取来

demonstrate vt.示范，证明，论证

paralyze vt.使瘫痪，使麻痹

enroll v.登记，招收，使入伍（或入会、入学等）