flunk
/flʌŋk/informal, chiefly N. Amer. <非正式, 主北美>
verb
with obj.
1- fail to reach the required standard in (an examination, test, or course of study)通不过（考试、测验或课程）; 在（考试、测验或课程）中失败, 不及格：
I flunked biology in the tenth grade
十年级时我生物不及格
no obj. I didn't flunk but I didn't do too well.我虽没有不及格, 但考得也不太好。
1.1
- judge (an examination candidate) to have failed to reach the required standard使（考生）不及格, 使（考生）通不过（考试）。
1.2
- no obj.
flunk out
(of a student) leave or be dismissed from school or college as a result of failing to reach the required standard（学生因不及格）退学; 被开除： he had flunked out of college.
他从大学退学了。
词源