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2026年3月9日,“自由250大奖赛”揭幕仪式在美国华盛顿特区举行,交通部长肖恩‧达菲(Sean Duffy)出席活动并讲话。Transportation Secretary Sean Duffy speaks during a press event unveiling the new Indycar for the Freedom 250 Grand Prix, in Washington on March 9, 2026. Featuring a 1.7 mile course with seven turns on the National Mall, the Aug. 23 event will celebrate America's 250th birthday. (Madalina Kilroy/The Epoch Times)
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