抢答器

lockout buzzer system (as used by game show contestants)

(literary) to knock against (esp. to knock one's head on the ground in grief or rage) / opposite in direction; contrary

to fight over / to rush / to scramble / to grab / to rob / to snatch

to compete to be the first to answer a question (as on a quiz show)

bound form having the same meaning as the free word 答[da2], used in 答應|答应[da1 ying5], 答理[da1 li5] etc

to answer / to reply / to respond

device / tool / utensil / CL:臺|台[tai2]