preparation

n.准备，预备；安排，筹备；制剂

premarital, premature, premeditate, premeditated, premeditation, premenstrual tension, premier, premiere, premise, premise (also premiss), premises, premium, Premium Bond, premonition, premonitory, preoccupation, preoccupied, preoccupy, prep, prep school, preparation for, preparatory, prepare, prepared, preparedness, prepay, prepayment, preponderance, preponderant, preponderate, preposition, prepositional, prepositional phrase, prepossessing, preposterous, preposterously, prerequisite, prerequisite (also pre-condition), prerogative, Pres,