prologue

n.序言，前言；(一系列事件等的)开端，序幕

prohibitively, prohibitory, project, Project Anehin, projectile, projection, projection room, projectionist, projector, prolapse, prole, proletarian, proletariat, proletariat `pr4ule'te4ri4t], proliferate, proliferation, prolific, prolifically, prolix, prolixity, prologue (US also prolog), prolong, prolongation, prolonged, prom, promenade, promenade concert, promenade deck, prominence, prominent, prominently, promiscuity, promiscuous, promiscuously, promise, promise oneself, promise to do, promising, promisingly, promissory,