flunk
[flʌŋk]
vt.& vi.
（使）（考试、某学科的成绩等）不及格;
vt.
评定（某人）不及格;
（因不及格而） 退学;
例句:
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He didn't flunk out, but his record isn't so hot.
他没有不及格, 但成绩很一般.
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Of course there are some who flunk this life too commonplace to be worthwhile.
自然,也有人将不屑于这平庸.
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Because of the laziness, the boy was flunk in the exam.
由于懒惰, 这男孩考试不及格.
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It would certainly flunk risk management.
来自WSJ
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You know, John Briggs, I'm going to flunk that test.
来自NEWYORKER
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If they can't, they flunk out. I invite you to come to the prison where I have worked.
来自SA