fail to

• I fail to see the bearing of that remark .
  我不明白该批评真意何在。
• She never fails to write me every week .
  她从不忘记每周给我写信。
• Many a student fails to pass in the examination ..
  许多学生考试不及格。
• Margaret failed to net her lord .
  玛格丽特没有抓住她的贵族朋友。
• Sometimes the testis fails to enter the scrotum .
  有时睾丸未能降入阴囊。
• I fail to see how you work it out .
  我看不出你是怎样推断出来的。
• Attempts have failed to detect allantoicase .
  试图检测尿囊素酶没有成功。
• As usual, i failed to catch his name .
  像往常一样，我没听清他叫什么名字。
• He failed to live up to his principles .
  他没有遵守自己的原则。
• Its transit failed to produce the desired stamp .
  出票口却并没有邮票出来。