flunk out ( flunking, flunked, flunks )

• 1. 

  PHRASAL VERB If you flunk out, you are dismissed from a school or college because your grades are not satisfactory. (因成绩太差) 被退学 [美国英语] [非正式]

  例：

  He flunked out, a school official told CNN.

  一位校方官员告诉美国有线电视新闻网说，他被退学了。

  例：

  If he doesn't find a solution to his problem soon, he'll surely flunk out of college.

  如果他不能很快找到解决问题的办法，他肯定要被学院退学。