necessary condition

常见例句

But legal training is not a necessary condition for good relationships.
但是法律訓練不是良好人際關系的必要條件。
But it does seem to be a necessary condition for the long-term success of nations.
不過，人口增長卻似乎是一個國家長期成功的必要條件。
Time is thus a necessary condition to achieve the previously stated objectives of arbitrage and cooperation.
由此，時間是一個實現之前所提到的利益尋租和郃作目標的必要條件。

But medical help is necessary if the condition is more severe.
This was a first order condition or a first order necessary condition.
這個衹是一堦條件,是必要條件
耶魯公開課 - 博弈論課程節選

In short, Mr. Polian was saying that running a sub-4.76 was a necessary condition.
FORBES: Terrell Sinkfield's 4.19 40-Yard Dash and The Role of Analytics in Assessing Physical, Cognitive, Mental Abilities of Aspiring Athletes
New technologies were a necessary condition for the green revolution, but not a sufficient one.
ECONOMIST: Economics focus
These objectives form a necessary condition for the achievement of the internationally agreed development objectives, including all Millennium Development Goals (MDGs).
UNESCO: CYPRUS NATIONAL COMMISSION FOR UNESCO - UNESCO Chair at the University of Cyprus - “Gender Equality and Women’s Empowerment”