[] helping to cause sth促成的;起作用的◆The bad weather was a contributory factor in the fall in sales.气候恶劣是造成销售额下跌的一个因素。involving payments from the people who will benefit需要受益人出资的◆a contributory pension plan/scheme(= paid for by employees as well as employers)由雇员和雇主共同出资的养老金计划OPPnon-contributory