breakthrough Example Sentence:

The exchange of documents between Greece and its EU negotiating partners has gone on for so long with no breakthrough that it has been given its own name-"paperology".

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Related: breakthrough

Prev: Scientists have discovered how the Ebola virus enters cells and infects humans, marking a major breakthrough in the battle against the virus after the deadly outbreak in West Africa in March 2014.

Next: What would be the biggest breakthrough over the next forty years?