priceless

a.无价的，珍贵的

prevaricator, prevent, prevent...from, prevent...from..., preventable, prevention, preventive, preventive (also preventative), preventive detention, preview, previous, previously, prey, prey on, price, price control, price war, price-fixing, price-list, price-tag, pricey (also pricy), pricing, prick, pricking, prickle, prickly / 5prIklI; `prIklI/, pride, prideful, priest, priestlike, priestly, prig, priggish, priggishly, priggishness, prim, prima ballerina, prima donna, prima facie, primacy,