fail单词相关例句：

If doctors fail thee, be these three thy doctors; rest, cheerful-ness, and moderate diet. 如果医药不能帮助，那么注意三件事∶休息，愉快，饮食调和。
A man can fail many times, but he isn't a failure until he begins to blame somebody else.——( J. Burroughs )    一个人可以失败许多次，但是只要他没有开始责怪别人，他还不是一个失败者。（巴勒斯）

词义辨析： acknowledge, admit, confess, recognize, concede acknowledge 通常指公开成认某事的真实情况或自己的过错。
admit 强调因外力或良心驱使或经判断而明确成认，多含不情愿或被迫意味。 confess 语气较强，着重成认自己意识到的错误或罪行，含坦白忏悔的意味。 recognize 作 “成认 〞解时，系书面用词，主要指合法的或外交上的成认，也指公认。
concede 指在事实与证据面前勉强或不得不成认。
例句： The critic should acknowledge the complexity and inherent ambiguity of the policymaker's choices .
评论者应该成认决策者作出抉择的复杂性及难以防止的缺乏鲜明性。
例句： We must not fail to acknowledge his services to the town .

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我们必须感谢他对本市的奉献。

The sights of the city never fail to impress foreign tourists.

外国游客无一不对该城市印象深刻。

If you don' t work, you will fail to pass the exam.

如果你不学习，你考试就会不及格。

I wouldn't lose courage even if / though I should fail ten times.

即使要失败十次， 我也绝不灰心。

You'll fail in English unless you work harder.

你要是再不加把劲，英语就要不及格了。

l study hard, or you will be bound to fail final examination.

努力学习吧，不然期末考试你肯定不及格。

Unfortunately the treaty are full of generality, and fail to get down to specific.

遗憾的是条约很笼统，订得不具体。

If I fail to appear by 7 o‘clock，I will not be coming at all.