2025年9月30日, 美国几个州传来神秘的金属声音, Mysterious metallic sounds echoed across several U.S. states on September 30, 2025, with no official explanation yet.

2025年9月30日美国多个州传来一系列神秘的响亮金属声音, 引发了广泛的猜测和关注, 居民报导有节奏的连锁噪音, 类似火车钟声。 A mysterious series of loud metallic sounds heard across multiple U.S. states on September 30, 2025, has sparked widespread speculation and concern, with residents reporting rhythmic clanging noises resembling train bells. 当局尚未查明来源,调查仍在进行中。 Authorities have not yet identified the source, and investigations are ongoing. 这些声音被描述为长途回响,引起无数人致电当地官员和社交媒体,但官方尚未公布任何解释。 The sounds, described as echoing over large distances, prompted numerous calls to local officials and social media posts, but no official explanation has been released.