... 确保万无一失.To Ensure Continued Operation 万无一失. Nothing falls 做到生产万无一失.So That Production Safety ...
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短语
万无一失
be on the safe side
;
perfectly safe
;
not a single miss in a thousand times
;
Nothing falls
万无一失的广告
A Safe Ad
把自己作为万无一失
regard oneself as infallible