failvi.失败；没做成某事；表现欠佳；用完；衰退vt.辜负；放弃；缺少；不及格n.不及格；没做成failedadj.失败的；不成熟的动词fail的过去式和过去分词形式.

1. A tension member may fail by plastic yielding.
   拉伸元件可能由于塑性屈伏而破坏。
2. Rod fatigue rupture is one of its main failure forms.
   抽油杆的疲劳破坏是抽油杆柱的主要失效形式之一。
3. It may also occur as a result of a failure.
   发生故障时，也会出现这种状态。
4. The craft did not crash because of engine failure.
   飞行器并非因引擎故障而坠毁。
5. He laid his failure to his lack of experience.
   他把失败归咎於缺乏经验。
6. On the other hand, inconstancy often results in failure.
   反之，缺乏恒心常常导致失败。