prior to

在前，居先，比…在先

princedom, princely, princess, Princeton, Princeton University, principal, principal boy, principal parts, principality, principally, principle, principled, print, printable, printed circuit, printed matter (also ,printed `papers), printer, printing, printout, prior, priority, priory, prise, prise (also esp US prize), prism, prismatic, prison, prison camp, prisoner, prissily, prissiness, prissy, pristine, privacy, private, private company, private enterprise, private eye, private member, private parts,