Busygin布瑟金busyadj.忙的；繁忙的；热闹的；(电话)占线的vt.使忙于busy hour call attempt忙时试呼busy designation strip示忙牌busy verification tone占线证实音busy with the homework忙于做功课busy indication system示忙系统busy hour to day ratio忙时集中系数busy indicating circuit示忙电路busy -back J-Horner占线测试塞孔, 忙音塞孔busy period distribution忙期分布Busy day at school today今天上学可真够忙