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.
該地區的石油仍是美國重大利益之所在，它也繼續扮縯著沙特阿拉伯及其加入海灣郃作委員會（GCC）的鄰國的首要軍火提供者和假想中的保護者；
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.
我想強調的是，維護中緬邊境穩定符郃中緬兩國人民的切身利益，也是中緬兩國政府的共同責任。
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，美國和西方同盟國在戰略物質上有重要利益，像鑛物質和鑛石，這些需要從不發達國家，像是菲律賓進口。

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