without fail
成語所屬單字fails
without fail — 慣用語
1. 1. on every occasion without exception. 2. used to emphasize that something must
1.慣用語
釋義
1. on every occasion without exception. 2. used to emphasize that something must be done, especially when giving an instruction or order.
例句
Nellie calls her mother every Sunday without fail, no matter how busy she is.
Please submit your tax forms by April 15th without fail, or you will face a penalty.