Jerome Powell, chairman of the Federal Reserve, said on Tuesday that it was not clear whether the outbreak of novel coronavirus's Delta variant would have a significant impact on the US economic recovery.

Powell said when attending the city hall meeting: "novel coronavirus still exists." And this may continue for a while, "but" people and businesses have learned to adapt. "

Powell did not comment on the Fed's monetary policy in his speech. But he said it was important for the Fed to stick to its existing functions because of its independence in monetary policy decision-making.

He also said the Fed's "strong policy tool" had many limitations. By contrast, fiscal or government policy is stronger and monetary policy cannot bring targeted benefits.

On employment, Powell said that millions of people in the US service industry are still out of work as part of the economic recovery, which is far from complete. The United States has not yet passed the current COVID-19 crisis and has not yet been able to declare victory.