fails
/feɪl/
名词
（课程）未通过；（考试）不及格
John got three passes and four fails in his exams.
约翰考试3门及格，4门不及格。
我每周一和周三必定去健身房。
Be there at nine o'clock, without fail.
9点钟务必到那里。
/feɪl/
动词
（使）不及格；（使）未能通过（考试）
She was sure she was going to fail.
她肯定自己考试通不过。
变弱；衰退；失灵
The old man was failing fast (= he was dying).
老人奄奄一息。
辜负；对…无能为力
He failed her in her moment of need.
她最需要他的时候，他却辜负了她。