性命攸关: a matter of life and death; as much as one's life is worth; of vital importance; it would cost someone his life
攸: Ⅰ助词[书面语] (所) 短语和例子性命攸关 a matter of life and death; 责有攸归。 the responsibility should lie where it belongs.Ⅱ形容词[书面语]1.(水流动的样子) flowing2.(迅疾) fleeting 短语和例子攸然而逝 past and gone3.(自得) contented;
