VERB
切断；截(肢)
To amputate someone's arm or leg means to cut all or part of it off in an operation because it is diseased or badly damaged.
例句
To save his life, doctors amputated his legs...
为了挽救他的生命，医生们截掉了他的双腿。
He had to have one leg amputated above the knee.
他的一条腿不得不从膝部以上截断。