Nguyên nhân ban đầu gây sập dầm cầu khiến nhiều người thương vong ở Hàn Quốc
Ngày 25/2, một vụ sập cầu nghiêm trọng đã xảy ra tại công trường xây dựng đường cao tốc ở thành phố Cheonan, miền Nam Hàn Quốc, khiến ít nhất ba công nhân thiệt mạng và năm người khác bị thương.
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