- 万全之策 wànquánzhīcè completely safe plana surefire plan; an extremely thorough and reliable strategy
- 万全之计 wànquánzhījì surefire plana foolproof or completely safe plan; an absolutely reliable strategy
- 计出万全 jìchūwànquán to make a foolproof planTo devise a strategy that is perfectly safe and thorough, ensuring that nothing can go wrong.