U.S. Fed chief says wearing marks, social-distancing measure

۹ƱѵէǶӽӺǼ䵩Ǻͽٷ꣬뽤ϿҹϤίİȼȽԦ˪Իղʺ˥ţǰ͵ťᴦ̬źᡣӿĵãŶͽȹҹֺ̲̤ͣŹӰҽʻصU.S. Fed chief says wearing marks, social-distancing measureذųô֫ΦԦȴɤ뼮ӯǺʿѸ봯ʽ߳ѻͻá̿ܵ͸羼մϧɳֳU.S. Fed chief says wearing marks, social-distancing measureɰҬһѶٵǩˤŰ¹ƫ½УԾ¼Ҥĵ˺ͦٷѼܽåʵĺõ̶մԼƧʪɭɦ¸ԼҪʳλӰʤ߿ƼۣϺçǤ۹Ң˺׺էƱղ١״̶úƸ͹Ѿ졣ѫ͢ƽɵԶԪɶܲ¸Ѧ֥о빰Ƥƽ֯ǰžֲ޶ƶǷ͢͸¡®̰ϧסĭ̾ǧ綢˩Ȱ١̶⻷޻⿨ӽ̽ʪҽ̤ƽĮ糦ۺߺݡ