开场白: prologue of play, opening remarks, preamble (of speeches, articles etc)...
凭证: proof, certificate, receipt, voucher...
营业: to do business, to trade...
伪装: to pretend to be (asleep etc), to disguise oneself as, pretense, disguise, (military) to camouflage, camouflage...
接手: to take over (duties etc), catcher (baseball etc)...
注释: marginal notes, annotation, to annotate, to add comments to text...
见效: to have the desired effect...
指挥: to conduct, to command, to direct, conductor (of an orchestra)...
充足: adequate, sufficient, abundant...
数据库: database...
