存亡绝续[cún wáng jué xù]
词典survival or death and extermination or continuation -- a very critical situation
词典at the critical juncture of life and death：存亡危急；存亡绝续。
词典go on living or be destroyed：存亡绝续。
词典stand or fall：好坏；存亡绝续。
存亡绝续[cún wáng jué xù]
survival or death and extermination or continuation -- a very critical situation; at the critical juncture of life and death; go on living or be destroyed; stand or fall; The fate is at stake.:
例：存亡绝续的关头
at a most critical moment