incentive

n.刺激；动机

incalculable, incalculably, incandescence, incandescent, incandescent lamp, incantation, incapability, incapable, incapably, incapacitate, incapacity, incapacity to, incarcerate, incarceration, incarnate, incarnation, incautious, incautiously, incendiary, incense, inception, incessant, incessantly, incest, incestuous, incestuously, inch, inchoate, incidence, incident, incidental, incidentally, incinerate, incineration, incinerator, incipient, incise, incision, incisive, incisively,