FAQs About the word sure-fire

萬無一失的

certain to be successful

故障安全,可靠的,當然,不可錯過的,確定,致命的,可靠的,無懈可擊的,堅定不移,準確

懷疑的,可疑的,不確定,易犯錯的

sure-enough => 當然, sure thing => 一定的, sure enough => 當然無疑, sure as shooting => 肯定能, sure => 當然,