prolong
/prəˈlɔŋ; ?@ -ˈlɔ:ŋ; prə`lɔŋ/ v
1 [Tn] make (sth) longer, esp in time; extend 延长（某事物）（尤指时间）; 使延伸
drugs that help to prolong life 延年益寿的药物
They prolonged their visit by a few days. 他们把访问时间延长了几天.
2 (idm 习语) prolong the `agonymake an unpleasant experience, a tense situation, etc last longer than necessary 延长痛苦; 将不愉快的经历、 紧张局势等拖长
Don't prolong the agony just tell us the result! 别再让我们著急了--快告诉我们结果吧!