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Use "timespan" in a sentence
"Delta PDRs and the like, stretched out over a year's timespan, is not something many would associate with progress."
"It’s very disappointing that the timespan is so long, and that there is no provision for the next banking collapse."
"Targeting applicants is not the worst idea, had it been conceived over a longer timespan and with greater regard for the difficulty of the job rather than the publicity it could garner."