preliminary

a.初步的 n.预备措施

preferentially, preferment, preferred, preferrential, prefiguration, prefigure, prefix, pregnancy, pregnant, prehensile, prehistoric, prehistory, prejudge, prejudgement, prejudice, prejudiced, prejudicial, prelacy, prelate, prelim, prelude, premarital, premature, premeditate, premeditated, premeditation, premenstrual tension, premier, premiere, premise, premise (also premiss), premises, premium, Premium Bond, premonition, premonitory, preoccupation, preoccupied, preoccupy, prep,