衰退
ails───abbr.自动仪表着陆系统（AutomaticInstrumentLandingSystem）
bails───[法]保释金；n.(Bails)人名；(英)贝尔斯；(法)巴伊
faiks───传真
fail───vi.失败，不及格；破产；缺乏；衰退；vt.不及格；使失望；忘记；舍弃；n.不及格；n.(Fail)人名；(葡、捷)法伊尔；(法)法伊
fains───法因斯
fairs───n.定期集市；低级烟；赛会（fair的复数形式）；abbr.联邦航空情报检察系统（FederalAviationInformationRetrievalSystem）
falls───n.瀑布；v.下降；下垂；倒塌；向下倾斜；沦陷；阵亡；进入（某状态）（fall的第三人称单数）；n.(Falls)（美）福尔斯（人名）
farls───n.燕麦薄饼；薄饼；（苏格兰）燕麦蛋糕
fils───n.（用于姓氏后以区分同名）子，小辈；费尔（伊拉克、巴林、阿联酋等国的货币）；n.(Fils)（美）菲尔斯（人名）
She never fails to email every week.───每周她必定发电子邮件。
If he fails, he'll drag us all down with him.───要是他失败了，他会使我们大家连同他一起毁掉的。
If Plan A fails, go to Plan B.───假如第一方案失败了，就执行第二方案。
Someone is always at my elbow reminding me that I am a descendent of slaves , but it fails to register depression with me.───身边总有人在不断使我想到自己是个努力的后代，但这并没有使我沮丧。
Rollback is called if the installation of any component in the installation project fails.───如果安装项目中任何组件的安装失败，则会调用Rollback。
Patients in whom appropriate therapy fails or corneal involvement develops should be referred to an ophthalmologist.───对于那些上述治疗方法失败或病变影响角膜的病人来说，应建议其至眼科医生处就诊。
He never fails to phone his mother on her birthday.───每逢母亲过生日时，他都会打电话给她。
An attempt to declare another global cursor with the name xyz after the stored procedure completed fails with a duplicate name error.───当该存储过程完成后，试图使用xyz名称声明另一个全局游标的操作将失败，因为出现了重复的名称错误。
Killing Spree: This ability no longer breaks stealth if it fails due to all targets being out of range.───杀戮盛宴：当这个技能由于所有目标都不在范围之内而失败时，不再取消潜行。
If he fails, then he will have little excuse in the eyes of those who voted him in.
A school fails if it does not fulfil the needs/requirements of its pupils.
An educational system which fails to teach basic arithmetic is seriously deficient.
The Grand Canyon never fails to impress.
If a computer user fails to log off, the system is accessible to all.
Where love fails, we espy all faults.
This book fails to give what the blurb describes.
This method of growing tomatoes never fails.
The Grand Canyon never fails to impress people.