扣题

to stick to the topic

to fasten / to button / button / buckle / knot / to arrest / to confiscate / to deduct (money) / discount / to knock / to smash, spike or dunk (a ball) / to cover (with a bowl etc) / (fig.) to tag a label on sb / (Tw) (loanword) code

button

surname Ti

topic / problem for discussion / exam question / subject / to inscribe / to mention / CL:個|个[ge4],道[dao4]