Play Video 0:00 /0:16 ![](< data:image/svg+xml,%3csvg viewBox='0 0 14 14' version='1.1' xmlns:xlink='http://www.w3.org/1999/xlink' xmlns='http://www.w3.org/2000/svg'%3e %3cdesc%3eCreated with Lunacy%3c/desc%3e %3cpath d='M8.34343 0.471381C8.34343 0.754209 8.53199 0.942761 8.81481 0.942761L12.3973 0.942761L7.91919 5.42088C7.73064 5.60943 7.73064 5.89226 7.91919 6.08081C8.10774 6.26936 8.39057 6.26936 8.57912 6.08081L13.0572 1.60269L13.0572 5.18518C13.0572 5.46801 13.2458 5.65657 13.5286 5.65657C13.8114 5.65657 14 5.46801 14 5.18518L14 0.471381C14 0.188552 13.8114 0 13.5286 0L8.81481 0C8.53199 0 8.34343 0.188552 8.34343 0.471381C8.34343 0.754209 8.53199 0.942761 8.81481 0.942761L12.3973 0.942761L7.91919 5.42088C7.73064 5.60943 7.73064 5.89226 7.91919 6.08081C8.10774 6.26936 8.39057 6.26936 8.57912 6.08081L13.0572 1.60269L13.0572 5.18518C13.0572 5.46801 13.2458 5.65657 13.5286 5.65657C13.8114 5.65657 14 5.46801 14 5.18518L14 0.471381C14 0.188552 13.8114 0 13.5286 0L8.81481 0C8.53199 0 8.34343 0.188552 8.34343 0.471381ZM5.42088 7.91919L0.942761 12.3973L0.942761 8.81481C0.942761 8.53199 0.754209 8.34343 0.471381 8.34343C0.188552 8.34343 0 8.53199 0 8.81481L0 13.5286C0 13.8114 0.188552 14 0.471381 14L5.18518 14C5.46801 14 5.65657 13.8114 5.65657 13.5286C5.65657 13.2458 5.46801 13.0572 5.18518 13.0572L1.60269 13.0572L6.08081 8.57912C6.26936 8.39057 6.26936 8.10774 6.08081 7.91919C5.93939 7.73064 5.60943 7.73064 5.42088 7.91919L5.42088 7.91919L0.942761 12.3973L0.942761 8.81481C0.942761 8.53199 0.754209 8.34343 0.471381 8.34343C0.188552 8.34343 0 8.53199 0 8.81481L0 13.5286C0 13.8114 0.188552 14 0.471381 14L5.18518 14C5.46801 14 5.65657 13.8114 5.65657 13.5286C5.65657 13.2458 5.46801 13.0572 5.18518 13.0572L1.60269 13.0572L6.08081 8.57912C6.26936 8.39057 6.26936 8.10774 6.08081 7.91919C5.93939 7.73064 5.60943 7.73064 5.42088 7.91919L5.42088 7.91919Z' id='Shape' fill='%23FFFFFF' stroke='none' /%3e %3c/svg%3e>) ![](< data:image/svg+xml,%3csvg width='19px' height='14px' viewBox='0 0 19 14' version='1.1' xmlns:xlink='http://www.w3.org/1999/xlink' xmlns='http://www.w3.org/2000/svg'%3e %3cdesc%3eCreated with Lunacy%3c/desc%3e %3cg id='mute'%3e %3cpath d='M1.50744 0.757533C1.36162 0.568179 1.21566 0.378761 1.02117 0.227235L0.875346 0.113644C0.680828 -0.0378815 0.389078 -0.0378815 0.194559 0.113644C6.84731e-05 0.265149 6.84731e-05 0.492438 0.194559 0.643942L0.34038 0.757533C0.486337 0.871231 0.583569 0.984822 0.680828 1.13633L0.729417 1.17426C1.65337 2.27271 1.45885 3.25756 0.145889 4.35603C-0.0486296 4.50753 -0.0486296 4.73482 0.145889 4.88632C0.243148 4.96209 0.34038 5 0.486337 5C0.632157 5 0.729417 4.96209 0.826648 4.88632C2.43138 3.52268 2.67446 2.1212 1.50744 0.757533Z' transform='translate\(13.41176 4\)' id='Path' fill='%23FFFFFF' stroke='none' /%3e %3cpath d='M1.67473 0.487896C1.53133 0.32527 1.38795 0.203266 1.24446 0.121953C1.0532 -0.0406509 0.766327 -0.0406509 0.575064 0.121953C0.383828 0.284579 0.383828 0.528495 0.575064 0.691122L0.909815 0.975729C1.14883 1.26027 1.43572 1.50421 1.67473 1.82944C3.4916 4.14667 2.67747 6.45997 0.143427 8.69591C-0.0478091 8.85853 -0.0478091 9.10245 0.143427 9.26505C0.239059 9.34637 0.334691 9.38708 0.478179 9.38708C0.621559 9.38708 0.717191 9.34637 0.812822 9.26505C3.63373 6.78522 4.49575 4.02476 2.48759 1.42289C2.20072 1.05704 1.91383 0.772412 1.67473 0.487896Z' transform='translate\(14.52941 2\)' id='Path' fill='%23FFFFFF' stroke='none' /%3e %3cpath d='M9.41898 0.0965707C8.8931 -0.106724 8.22371 0.0152805 7.69783 0.421732L4.06404 3.06428L2.34277 3.06428C1.05189 3.06428 0 3.99928 0 5.05628L0 9.04031C0 10.1786 1.05189 11.0323 2.34277 11.0323L3.82503 11.0323L7.69783 13.6342C8.08022 13.8781 8.5106 14 8.8931 14C9.08434 14 9.32335 13.9594 9.46684 13.8781C9.99275 13.6748 10.2796 13.187 10.2796 12.5365L10.2796 1.47873C10.2796 0.828275 9.99275 0.299796 9.41898 0.0965707ZM9.32335 12.5772C9.32335 12.9024 9.22775 13.1057 9.03648 13.187C8.84522 13.2683 8.55835 13.187 8.27148 13.0244L4.15967 10.2599L2.34277 10.2599C1.57778 10.2599 0.956263 9.73146 0.956263 9.081L0.956263 5.09691C0.956263 4.44642 1.57778 3.91797 2.34277 3.91797L4.39868 3.91797L8.27148 1.11288C8.55835 0.909565 8.79747 0.828275 8.98873 0.909565C9.17997 0.990878 9.32335 1.23482 9.32335 1.56005L9.32335 12.5772Z' id='Fill-3' fill='%23FFFFFF' stroke='none' /%3e %3c/g%3e %3c/svg%3e>) 7月4日是美国独立日。受极端高温影响，费城取消原定于3日举行的独立日游行。1776年7月4日，《独立宣言》在费城通过。 受“热穹顶”天气系统影响，极端高温高湿天气7月初笼罩美国多地，并自中西部、南部向人口稠密的东海岸地区蔓延。气象预报显示，7月4日独立日前后，纽约、华盛顿、波士顿、费城等东北部城市最高气温将突破38摄氏度。首都及其他地方官员取消或推迟了数十场游行、音乐会和烟花表演等活动。（记者、视频：雷明宇）