- 生死攸关 shēngsǐyōuguān criticalmatter of life and death
- 性命攸关 xìngmìngyōuguān criticalvitally important; involving a matter of life and death
- 利害攸关 lìhàiyōuguān vitally importantto be of vital interest; to involve critical consequences
- 存亡攸关 cúnwángyōuguān life-and-deatha make-or-break matter; a situation where survival or destruction is at stake
