[approaching death] 接近死亡
金垂亡之际,南宋尚不知唇亡齿寒,大祸将至,竟作出联蒙灭金的决策,结果寸土未得,实力暴露,最终走向灭亡。
Worse still , when the Jin was doomed , the Southern Song even made a decision to join with the Mongols to resist the Jin , not knowing that it would soon follow the Jin 's fate .