https://www.youtube.com/watch?v=m0E_wMIwfSI For John, no amount of therapy, exercises or hypnosis has done the trick. hypnosis: 최면 It's perpetually frustrating to know exactly what you want to say and not be able to say it. perpetual (오래 동안) 끊임없이 계속되는 (=continuous) 빈번한, 빈번히 계속되는 (=continual) 종신의 frustrating: 불만스러운, 좌절감을 주는 Now, every person stutters differently, and John rarely prolongs his word..