failure
单词辨析：
指做某事时未能达成目标，也可指不成功的人或事。
Their action ended in failure.
他们的行动以失败而告终。
She felt she was a failure in the others' eyes.
她觉得在别人眼中自己是个失败的人。
His election campaign was a complete failure.
他的竞选活动完全失败。
多指在与某一方的对抗中所遭遇的失败，如在战争、比赛、竞选等中的失利，也可泛指未能做成某事。
a narrow defeat
惜败
The commander admitted defeat in the battle.
指挥官承认此次战役失败了。
指让人十分难堪或失望的彻底失败。
His first audition was a fiasco.
他第一次试镜彻底失败。
He hoped that the supper his girlfriend made would not be a fiasco.
他希望女朋友做的晚饭不会完全无法下咽。
指不受欢迎的产品、电影、戏剧等。
The flop of the novel discouraged the writer.
小说的失败让作者非常沮丧。
The monotonous dialogue made the film a complete flop.
单调的对白使这部电影一败涂地。
相关例句：
His six-year transition programme has by no means been a complete failure.
他的六年转型计划绝没有彻底失败。
I just felt I had been a failure in my personal life.
我就是觉得我的个人生活很失败。
Any attempt to set back the wheel of history is doomed to failure.
任何要使历史倒退的企图都是注定要失败的。
He collapsed from acute renal failure
他的身体因为严重的肾衰竭而垮掉了。
Japan's space ambitions have had a set-back after the failure of an engine in a test run
一次试运行中的引擎失灵使得日本的太空梦想遭受了挫折。
You know perfectly well I can't be blamed for the failure of that mission
你很清楚那次任务的失败不该怪我。