vital interest

基本解释

America continues to have a vital interest in the region's oil and remains the chief armourer and presumed protector of Saudi Arabia and its GCC neighbours.
该地区的石油仍是美国重大利益之所在，它也继续扮演着沙特阿拉伯及其加入海湾合作委员会（GCC）的邻国的首要军火提供者和假想中的保护者；
I'd like to stress that to safeguard border stability is in the vital interest of people from the two countries. It is also the common responsibility of the two governments.
我想强调的是，维护中缅边境稳定符合中缅两国人民的切身利益，也是中缅两国政府的共同责任。
www.fmprc.gov.cn
Second, the US and its western allies have a vital interest in strategic materials, like mineral and ore, which have to be imported from less-developed countries like the Philippines.
第二，美国和西方同盟国在战略物质上有重要利益，像矿物质和矿石，这些需要从不发达国家，像是菲律宾进口。

The private meeting began with a few public remarks by the president, in which he focused on issues of vital interest to the governors.
"The security of Europe has been a vital national interest of the United States for my entire career.

But it is in the vital interest of the United States that we succeed.
NPR: Text of Bush's State of the Union Address
Our nations and the world have a vital interest in the success of this mission.
WHITEHOUSE: President Obama Speaks at ISAF Meeting on Afghanistan