a)ALWAYS/EVERY TIMEif you do something without fail, you always do it 必定,总是
Tim visits his mother every day without fail.
蒂姆每天必去看望他的母亲。
b)CERTAINLY/DEFINITELYused to tell someone very firmly that they must do something 务必,一定〔用于坚决地告诉别人一定要做某事〕
I want that work finished by tomorrow, without fail!
我要求那项工作必须在明天之前完成,不得有误!
Examples from the Corpus
without fail• You must take the medication every day without fail.• Danny comes over every Sunday without fail.• I want that work finished by tomorrow, without fail!• My mother goes to church every weekwithout fail.