Nước sông Son đục ngầu bất thường, 'thủ phủ du lịch' Phong Nha-Kẻ Bàng lao đao

The Son River water is murky and turbid as if polluted, instead of the clear jade-green water it normally has. The post: Son River water abnormally murky, the 'tourism capital' of Phong Nha-Ke Bang in turmoil

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