If the talks fail, no one is sure what the next step will be.

如果这次谈判失败，谁也不知道下一步将发生什么。

youdao

And Iran's foreign minister threatens to resume Teheran's uranium enrichment program if talks with European Nations in London fail.

伊朗外长威胁说，如果在伦敦举行的伊朗与欧洲各国进行的会谈失败，伊朗会重新启动德黑兰铀浓缩计划。

youdao

An Iranian official told the Reuters news agency that Tehran would produce the highly enriched uranium at home if the Vienna talks fail.

VOA: standard.2009.10.19

If talks fail to resolve the row, Unite will agree strike dates and action short of a strike on Thursday.

BBC: Capita staff plan strike over offshoring plans

But Tudjman has threatened to take the region by force if talks fail to come up with a result by November 30.

CNN: Tensions rise as Croat troops mass on border

But if talks fail, the EU has said it is prepared to admit the Greek part alone, leaving the impoverished Turkish Cypriot community out in the cold. (The Greek bit was one of the ten countries invited to join in Copenhagen.) Were that to happen, the Greek Cypriots would most likely oppose Turkish membership for some years.

ECONOMIST: Island of troubles | The