press-stud

n (also infml 口语作 popper, esp US `snap fastener) small fastener for clothes made of two parts that can be pressed together 子母扣儿; 摁扣儿.

preserve, preserve from, preserver, preset, preside, presidency, president, presidential, presidium (also praesidium), press, press agent, press baron, press conference, press for, press officer, press photographer, press release, press-box, press-gallery, press-gang, press-up (US `push-up), pressing, pressingly, pressman, pressure, pressure group, pressure-cooker, pressurization, pressurisation, pressurize, pressurise, pressurized-water, prestidigitation, prestidigitator, prestige, prestigious, presto, presumable, presumably, presume, presumption, presumptive,