1) To survive or perish
存亡
2) on the edge of death
生死存亡
1.
While the public libraries of large and medium cities develop faster where the "hard" and "soft" equipment is also on a high level,the libraries at county level develop more slowly,lag behind and are even on the edge of death.
我国图书馆事业发展不平衡,国家图书馆,省级图书馆发展较快,县级图书馆发展不如人意,有的甚至处在生死存亡的边缘。
3) Be a life and death matter
存亡攸关
4) survival of a country
国家存亡
1.
In the process of globalization today,culture safety has become a realistic problem concerning the survival of a country.
在全球化时代的今天,文化安全是一个关乎国家存亡的现实问题。
5) the reason for its existence and wane
存亡原因
6) rising and falling
兴衰存亡
补充资料：存亡
1.存在或灭亡;生存或死亡。 2.指生者和死者。 3.指衰亡;灭亡。 4.引申指丧失﹑陷落。 5.使濒临灭亡或已亡者得以继续存在或延续。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。