push-button

adj．用按钮操纵的

purposelessly, purposely, purposiveness, purr, purse, purser, pursuance, pursuant, pursue, pursuer, pursuit, purulence, purulent, purvey, purveyance, purveyor, purview, pus, push, push-bike, push-cart, push-chair, push-over, push-pull, push-start, push-up, pusher, pushily, pushiness, pushing, pushover, pushy, pusillanimity, pusillanimous, pusillanimously, puss, pussy, pussy willow, pussyfoot, pustule,