过期 exceed the time limit; be overdue; overdue; expire 过期作废 invalid after the specified date; 过期分娩 postmature delivery; postponed labor; postterm birth; 过期汇票 overdue bill; 过期胶卷 expired film; 过期刊物 back number; 过期流产 missed abortion; 过期 (车)票 invalid ticket; 过期妊娠 prolonged pregnancy; 过期提单 stale bill of lading; 过期条款 expiration clause; 过期文件 [计算机] scratch file; 过期杂志 back number of a magazine; 过期债权 stale claim; 过期照票 deferred sight; 过期支票 stale cheque