上周五国债收益率蹿升即是受这样一种看法推动：美国联邦储备委员会(Fed，简称：美联储)需要比预期更快地上调利率，从而可能令经济增速过快、过早地减缓。

The spike in yields on Treasurys on Friday was driven by the view that the Federal Reserve would need to raise interest rates sooner than expected, possibly slowing the economy too fast, too soon.

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