Translation of "Failing  " in Chinese

His failing the test is no laughing matter.

他這次測驗不合格可不是開玩笑的。

Failing the examination means waiting for another year.

考试不及格意味着再等待一年。

Regardless how many times I try to solve this nasty problem, I always end up failing.

对于这个棘手的问题，无论我尝试多少次，结果都会以失败告终。