您要查找的是不是：
- He failed through diffidence. 他因缺乏自信而失败。
- He failed in everything he tried. 他想来的一切办法都没成功。
- Rarely did he fail to keep his promise. 他真的很难得失信。
- He failed many times but he finally broke through to find a successful polio vaccine. 他失败了许多次，但终于发现了有效的预防小儿麻痹症的疫苗。
- He failed in doing business and went under. 他做生意失败而告破产。
- Regrettably, he failed the examination. 可惜，他考试失败了。
- He failed in the examination of mechanics. 他没通过力学考试。
- He failed to respond to the medicine. 他服了这药未见起色。
- He have do his possible though he fail at last. 他虽然最後失败了，但已经尽了力。
- He fail many times, but he do not lose heart. 他失败了许多次，但他并没有失去信心。
- He failed many times, but he did not lost heart. 他失败了许多次，但他并没有失去信心。
- All his hopes came to naught when he failed the exam. 他考试不及格，所有的希望都化为泡影了。
- He failed to get promoted for lack of resolution. 他因缺乏果断力而未能得到升迁。
- He had done his possible though he failed at last. 他虽然最后失败了，但已经尽了力。
- Inevitably he failed the exam, because he was lazy. 因为他很懒惰,考试当然不及格。
- He failed to obtain a scholarship. 他没有获得奖学金。
- Although he failed, he has done his best. 他虽然失败了,可是他已尽了最大努力。
- He knew that one of them might fail through fear at the decisive moment. 他知道由于恐惧，他们中间有一个可能会在关键时刻出岔子。
- Gambling is the reason why I have failed through my life. 赌博是我一生失败的理由。
- He failed again for all his pains. 尽管他费尽精力，还是再一次的失败。
