After weeks of relentless ascent to heights not seen in two decades, the dollar paused on Friday as the European Central Bank's historic rate hike reminded markets that America is not alone in its battle against inflation. The euro's recovery carried other currencies with it — the pound, the yen, the Australian and New Zealand dollars — each reclaiming ground in a single day that had taken weeks to lose. What follows now is a moment of collective breath-holding, as traders wait for Tuesday's U.S. inflation report to tell them whether the Federal Reserve's resolve will be tested or vindicated.