/ɪnˈsentɪv ||; ɪnˈsɛntɪv/noun [C,U]
(an) incentive (for/to sb/sth) (to do sth) something that encourages you (to do sth) 鼓励；刺激:
There's no incentive for young people to do well at school because there aren't any jobs when they leave. 由于毕业后没有就业机会，青年学生缺乏努力学习的热情。