primary

a.首要的，主要的；基本的，初级的；最初的

pricking, prickle, prickly / 5prIklI; `prIklI/, pride, prideful, priest, priestlike, priestly, prig, priggish, priggishly, priggishness, prim, prima ballerina, prima donna, prima facie, primacy, primaeval, primal, primarily, primary colour, primary education, primary school, primate, prime, prime cost, prime meridian, prime minister, prime mover, prime number, prime time, primer, primeval, primeval (also primaeval), primitive, primitively, primitiveness, primly, primness, primogeniture,