刷牙

刷牙	shuā yá	to brush one's teeth
刷	shuā	a brush / to paint; to daub / to brush; to scrub / (fig.) to remove; to eliminate (from a contest); to fire (from a job) / (onom.) swish; rustle / to swipe (a card) / to scroll on (a phone) / (gaming) to grind; to farm (for experience points, equipment, levels etc)
刷	shuà	to select
牙	yá	tooth / ivory / CL:颗