He revealed that half the officers in a key unit failed a polygraph test last year. 据他透露，半数某关键部门的警官都没能通过去年的测谎鉴定。
Since its inception, PDC has expanded at a rapid pace and is now a key department for delivery of banking systems within the HSBC Group. 自成立以来，软件开发中心高速发展，现已成为汇丰集团银行系统的关键部门。
