existential threat

基本解释

All agree that climate change is an existential threat to humankind.
眼下，这场关键性的会议正一天天向我们走来。众所周知，气候变化对人类的生存构成了威胁。
Members of the Pakistani security establishment remain convinced that India poses an existential threat to Pakistan.
巴基斯坦安全部门的成员仍然相信，印度是巴基斯坦现在的威胁。
Even now, few Pakistanis may consider the Taliban to be the existential threat to their country America says it is. But all Pakistanis can appreciate the merits of having better government.
即使在现在，也没几个巴基斯坦人认为塔利班对自己的国家构成了实际性威胁（当然美国可不是这样认为的），但所有的巴基斯坦人都向往一个更好的政府。

"This threat from violent extremism, not just in Afghanistan, not just in Pakistan, but globally,is a real existential threat to freedom-loving countries.

Of course, we hardly need to look for new cases of corporate existential threat.
FORBES: Does Samsung's Investment In Sharp Threaten Apple? Disruption From Sharp's Meltdown Is Spreading
But Russia does not pose the existential threat to America that Leonid Brezhnev's Soviet Union once did.
ECONOMIST: The pragmatic argument for American engagement
For a country as small as Israel, even a small-scale nuclear attack could be an existential threat.
ECONOMIST: Conflict in the Middle East