flunk

不及格、没通过、考坏口语

He flunked the math exam and had to take it again.

他数学考试不及格，必须重考一次。

不及格、被当口语

If you keep skipping class, you will definitely flunk.

你再继续跷课，一定会被当。

给…不及格、当掉口语

The professor flunked half the class last semester.

那位教授上学期当掉了班上一半的学生。

未通过、没过关口语

The old building flunked the city's fire safety inspection.

那栋旧建筑没通过市政府的消防安全检查。

不及格、失败美式，口语

Another flunk in chemistry would cost him his scholarship.

化学再一次不及格，他就会失去奖学金。

被退学、辍学口语，flunk out

He flunked out of college during his second year.

他大二时因成绩太差被大学退学。