stimulus

n.刺激；鼓舞

stigmata, stigmatize, stigmatize, stigmatise, stile, stiletto, stiletto heel, still, still birth, still life, stillborn, stillness, stilt, stilted, stiltedly, Stilton, stimulant, stimulate, stimulated, stimulating, stimulation, sting, sting-ray, stinger, stingily, stinginess, stinging-nettle, stingy, stink, stink-bomb, stinker, stinking, stint, stipend, stipendiary, stipple, stipulate, stipulation, stir, stir up, stir-fry,