The existing treaties allow "enhanced co-operation" to form such clubs-within-clubs.

现存的条约允许“强化合作”来建立俱乐部内的俱乐部。

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They are resorting to a provision in EU rules—never before invoked—called "enhanced co-operation".

他们正在一个从未被引用过的名为“加强合作”的欧盟规章上做文章。

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In similar fashion to the euro zone, a core group could advance under the union's provisions for "enhanced co-operation".

采用了和欧元区类似的风格，核心组可以在欧盟“增强合作”的规定下取得进展。

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As a result 11 eurozone countries applied to go it alone under "enhanced co-operation" rules.

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However during the final session, MEPs broadly rejected this, preferring enhanced co-operation, along the lines of the Schengen agreement on border controls.

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"China and Israel have both much to gain from enhanced co-operation, and that's our goal, " Mr Netanyahu's spokesman Mark Regev told AFP news agency.

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