数千人聚集在National Mall,参加由NBC报道的各种文化和历史事件。 Thousands gather at National Mall for diverse cultural and historical events, covered by NBC.

数以千计的美国人今天聚集在国家购物中心参加各种活动。 Thousands of Americans gathered at the National Mall today for various events. 这一活动吸引了对历史和文化体验感兴趣的游客，全国各地的几家 NBC 附属机构报道了这些事件。 The occasion drew visitors interested in historical and cultural experiences, with several NBC affiliates across the country covering the happenings. 活动包括纪念活动和公共集会,庆祝美国生活的各种片段。 Events included commemorations and public gatherings, celebrating the diverse tapestry of American life.