prolong

vt.延长

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