The United States is celebrating its 250th anniversary of independence with a series of organized national events, featuring large public gatherings and military displays.

美國正透過一系列精心策劃的全國性活動，包括大規模公眾集會與軍事展示，來慶祝獨立250週年。

Most of the celebrations are taking place in Washington, D.C., where the government has arranged military flyovers and a fireworks show that officials claim is the largest in the city's history. Because of the size of these events, they were labeled as a 'national special security event,' meaning the U.S. Secret Service took primary control of security. To support this, the U.S. Marshals Service recruited hundreds of officers from 44 local agencies. Furthermore, the Federal Aviation Administration closed Ronald Reagan Washington National Airport for an entire day to manage the air traffic safely.

大部分慶祝活動都在華盛頓特區舉行，政府安排了軍機飛越與煙火表演，官員聲稱這是該市歷史上規模最大的煙火秀。由於這些活動規模龐大，被列為「國家特別安全事件」，這意味著美國特勤局主導安全控制。為了支持此項工作，美國法警局從44個地方機構招募了數百名警員。此外，美國聯邦航空管理局將羅納德·雷根華盛頓國家機場關閉一整天，以確保空中交通安全。

However, extreme weather has forced some changes to the schedule. Because of a 'heat dome' in the eastern U.S., temperatures in the capital were expected to break records from 1919. Consequently, organizers canceled the Independence Day parade to protect people from heat stroke and exhaustion. Despite this, other events continued, such as the Boston Pops Fireworks Spectacular in Massachusetts and eight synchronized ball drops in New York City's Times Square to mark the holiday across all time zones.

然而，極端天氣迫使部分行程有所調整。由於美國東部出現「熱穹」現象，首都的氣溫預計將打破1919年的紀錄。因此，主辦方取消了獨立日遊行，以防止民眾中暑或體力不支。儘管如此，其他活動仍繼續進行，例如麻薩諸塞州的波士頓流行樂團煙火盛會，以及紐約市時任廣場為標誌各個時區假期而進行的八次同步球落禮。

Aerial displays also took place outside the capital. In Colorado, the Air National Guard flew F-16s over several towns, although some areas were restricted due to wildfires. In Washington, a mobile app helped citizens track various aircraft, including the Blue Angels. These celebrations happen at a time of social reflection; while a CBS News poll shows that many people believe the country has achieved its founding goals, about half of the population feels that the 'American Dream' is harder to reach and that democracy is currently at risk.

空中表演也在首都以外的地方舉行。在科羅拉多州，空軍國民警衛隊派遣F-16戰機飛越多個城鎮，儘管部分地區因山火而設有禁飛區。在華盛頓，一款行動應用程式幫助公民追蹤各種飛機，包括「藍天使」特技飛行隊。這些慶祝活動正值社會反思之際；雖然CBS新聞的民調顯示，許多人相信國家已實現建國目標，但約半數人口認為「美國夢」現在更難實現，且民主目前面臨風險。

The 250th-anniversary celebrations continue despite strict security and difficult weather, reflecting a mix of national pride and concerns about the country's political future.

儘管有嚴格的安全管制與惡劣天氣，250週年慶祝活動仍繼續進行，反映出國家自豪感與對國家政治前景擔憂的複雜交織。