The Federal Reserve has said it will launch a $40bn short-term bond-buying programme just weeks after it stopped shrinking its balance sheet following repeated bouts of strain in money markets.
美联储表示将启动一项规模为400亿美元的短期债券购买计划。此前，因货币市场多次出现紧张，数周前美联储刚刚停止缩表。
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