美联储主席鲍威尔：零利率下限仍是一个风险，应在框架中加以解决，但鉴于当前的政策利率水平，零下限已不再是一个基本情况。

Core Viewpoint - The Federal Reserve Chairman Jerome Powell stated that the zero lower bound on interest rates remains a risk that should be addressed within the framework, but given the current policy interest rate levels, the zero lower bound is no longer a fundamental concern [1] Group 1 - The zero lower bound on interest rates is acknowledged as a risk that needs to be managed [1] - Current policy interest rates indicate that the zero lower bound is not a pressing issue at this time [1]