n.图书编纂者，书商( bookmaker的名词复数 )，[赛马]赌注登记经纪人...

BrIt'system of signalling by hand signs used by bookmakers at racetracks.堵住登记经纪人在跑道上用手势发信号的系统.Unlike traditional bookmakers, Betfair punters bet against each other.不同于传统的庄家, 在必发的赌客是互相赌的....

bookmakers的音标：...