precondition

音标发音

The US should insist on a substantive agenda as a precondition for any Obama visit.
美國應該堅持將實質性的議事日程作爲奧巴馬訪問的前提。
After taking office in January, Barack Obama offered talks without precondition to Iran.
一月，奧巴馬上任以後，提出與伊朗進行無先決條件會談。
However, the precondition is that all shared attributes must be serialized and deserialized.
然而，前提是必須對所有共享的屬性進行序列化和反序列化。

"We're convinced that the Cuban government, and President Raul Castro said this also, that everything is on the table, discussion,dialogue,no precondition.,"
It would appear that Milton's suggesting that it's chastity that actually establishes something like a precondition for hearing and learning that inspired song that's actually sung before the throne of God in Revelation.
那表明了彌爾頓的建議,關於確實是貞操建立了某些事物,像聽和學的事先準備對歌的啓發作用,在《啓示錄》裡確實在上帝麪前唱了。
耶魯公開課 - 彌爾頓課程節選
That is the necessary precondition for the stability that I think everyone is seeking for the country to be able to move forward,"

For those who insist that political freedom is a fundamental precondition, the historical evidence is disappointing.
FORBES: Globalism and Technology: A Hidden Misconception That Dooms the U.S. Economy

something that must happen or be true before it is possible for something else to happen

If one thing is a precondition for another, it must happen or be done before the second thing can happen or exist.