这一立场的可信度是美联储采取积极举措的基础：很难想象，美联储将其资产负债表扩张到让公众不再相信其通胀目标的程度会怎么样。
That credibility has allowed the Fed to be aggressive: it is difficult to imagine that it could have expanded its balance sheet to the extent that it has if the public thought that it could not be trusted on inflation.