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1·The skin graft failed to take.

皮肤移植未能成功。《牛津词典》

2·They have failed lamentably.

他们的失败让人惋惜。《柯林斯英汉双解大词典》

3·Unsurprisingly, the plan failed.

果然不出所料，计划失败了。《牛津词典》

4·The life jacket failed to inflate.

救生衣未能充气。《牛津词典》

5·She failed to get into art college.

她未能进入艺术学院。《牛津词典》

6·Bob failed his physical.

鲍勃没有通过体格检查。《柯林斯英汉双解大词典》

7·She utterly failed to convince them.

她根本没有说服他们。《牛津词典》

8·The party failed to win the election.

该政党未能赢得选举。《柯林斯英汉双解大词典》

9·He failed to fulfil his early promise.

他没有像小时候表现的那样有出息。《牛津词典》

10·I failed in my attempt to persuade her.

我未能说服她。《牛津词典》

失败

1·They have failed lamentably.

他们的失败让人惋惜。《柯林斯英汉双解大词典》

2·Quite frankly , I'm not surprised you failed.

老实说，我对你的失败不感到意外。《牛津词典》

3·The reforms were generally adjudged to have failed.

人们普遍认为，改革已经失败。《牛津词典》

4·Attempts to resurrect the ceasefire have already failed once.

为恢复停战所作的努力已经失败过一次了。《柯林斯英汉双解大词典》

5·Efforts to heal the rift between the two countries have failed.

弥合两国间分歧的各种努力都已失败。《牛津词典》

失败了

1·Unsurprisingly, the plan failed.

果然不出所料，计划失败了。《牛津词典》

2·Attempts to find a solution have failed.

试图找到解决办法的种种努力全都失败了。《牛津词典》

3·The prisoners attempted an escape, but failed.

囚犯企图逃跑，但失败了。《牛津词典》

4·All the attempts to petition Congress had failed.

所有向国会提出请求的努力都已失败了。《柯林斯英汉双解大词典》

5·The coup failed because of miscalculations by the plotters.

因为策划者判断失误，那场政变失败了。《柯林斯英汉双解大词典》

不成功

1·It took so long to find because it's an extremely dim and cool kind of failed star called a brown dwarf.

因为它亮度很低，是“不成功”的恒星——褐矮星中温度很低的一种，天文学家花了很长时间才找到它。

2·But the difference between good intentions and failed intentions comes down to one thing: knowing that self-change is one of the hardest things we will ever do.

但是好的意图和不成功的意图间的差异会消失在一个认识里：改变自我是我们所做过最难的事之一。

3·He is a failed actor who is everywhere patronised as a colonial, especially by the toffee-nosed English theatrical types for whom he still hopefully auditions.

这个澳大利亚人是个不成功的演员，他何时何地都是被当做一个殖民地居民而被婉拒，特别是当他还在满怀希望地试演时，被骄傲自大的英式剧目否决。

4·We have attempted to stop his action, but failed completely.

我们试图阻止他的行动，但是不成功。

5·Evidence show that the experiment failed.

证据表明试验不成功。

辜负了

1·Why, Mama, why did you feel that you failed me?

可是啊，妈妈，为什么你要说你辜负了我？

2·But if a child leaves school thinking that humans don't share a common ancestor with other apes, isn't the truth just that the education system failed them?

但是当一个孩子离开学校的时候还认为人类和猿猴的祖先不一样，真相不就成了：教育体制辜负了孩子？

3·It has failed you by being easy, free, forgiving, attentive, comfortable, interesting, unchallenging fun.

在轻松、自由、 宽容、关爱、舒适、有趣而又不具挑战的环境中，大学辜负了你们。

4·No, its all my fault, I failed him because of fear, fear is it's own kind of darkness.

不，那都是我的错，我辜负了我父亲因为我有所恐惧，恐惧是自己所种下的黑暗。

5·I want to say to you: I'm sorry I failed you!

我想对你说：对不起我辜负了你！

未成功

1·The sources told media outlets that a US citizen of Pakistani origin who recently bought the car used in the failed bombing had been arrested.

他们表示，有一名巴基斯坦裔美国公民被抓获，据悉他买了一辆二手车，用在此次未成功的爆炸中。

2·He says they failed to make their case that this appeal will be the last.

他说，汽车制造厂家未成功说明这将是(他们的)最后一次请求。

3·One half of the failed patients were due to local recurrence.

治疗未成功而死亡之病人有半数乃是局部复发所致。

4·He managed to pursuade her but failed.

他试图说服她，但未成功。

5·A failed escape attempt by the captain of a ship that is being held by pirates off the coast of Somalia, captain Richard Philips reportedly jumped into the water and tried to swim his way to a u.

被索马里海盗劫持美国船长曾跳海逃跑未成功。船长理查德·菲利普斯曾从关押他的救生艇上跳到海里，试图游向附近的美国军舰。

已失败的

1·The activity is then put in state failed and the fault is propagated to the fault handler of the next enclosing scope.

然后将该活动置于已失败状态，并且将错误传播到下一个封闭范围的错误处理程序。

2·This is especially crucial under failover conditions when WebSphere USES the application session ID in the encoded URI to route requests to the replication peers of the failed application servers.

这在故障转移情况下尤其重要：WebSphere使用已编码uri中的应用程序会话id将请求路由到已失败的应用程序服务器的副本服务器。

3·China's neighbors are a rich and powerful Japan, rising South Korea and Vietnam, giant India and Russia, and a host of failed or failing states in Central and Southeast Asia.

中国的近邻则有富强的日本、上升中的韩国和越南、庞大的俄罗斯和印度以及一干已失败或正在败落的中、东南亚国家。

4·The worst thing would be if I failed at it without really trying.

最糟糕的事情莫过于没有去真心尝试就已失败。

(1)fail in失败；缺少

(1)without fail务必；必定，无疑

(1)never fail to一定会...

(1)fail to do失败；未做成

(1)fail safe故障保护；失效安全

(1)fail to resolve解决未果