US stocks clawed back losses to end a wild trading day higher after Federal Reserve chairman Jay Powell signalled he had no immediate plans to change monetary policy despite the rising growth and inflation expectations that have been roiling markets.
美股周二波動劇烈，在美聯儲(Fed)主席杰伊?鮑威爾(Jay Powell)暗示眼下不計劃改變貨幣政策后收復了失地，收盤走高，盡管投資者對經濟增長和通脹的預期上升這個因素一直在擾動著市場。
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