The IAEA's approval of the plan is a key condition for enacting the deal.

国际原子能协会对此项协议的赞同也是促成其通过的一个重要条件。

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Not, however, without one key condition: more progress on European defence.

然而，一个主要的条件却是必不可少的，即要在欧洲的防御上获得更多的进展。

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So plenty of professional knowledge and very careful design is the key condition of setting up an excellent website.

丰富的专业知识和周密的规划是建设一个优秀网站的前提条件。

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She calls this a "key condition for the success of the Copenhagen conference."

VOA: standard.2009.12.16

This is something that we have been doing so far." Minister Jeremic admits cooperation with The Hague tribunal is a key condition to realize the ambition of Serbia and other Balkan nations to join the European Union.

VOA: standard.2009.10.25

But Iran has again refused to meet a key condition that the Russians have set.

NPR: Iran Refuses Key Condition in Russia Nuclear Talks

The IAEA's approval of the plan is a key condition for enacting the deal.

BBC: India MPs hold vote of confidence

Ensuring the security of the EU's external borders is a key condition.

BBC: EU warned against changing Schengen deal on borders