3.five. Th?c Hello?n m?t s??nhi?m v??khác do ban th??ng v??t?nh ?y, th??ng tr?c t?nh ?y giao.North of the Pink River the aid is moderate, with the very best elevations occurring between the Red and Lo (Clear) rivers; There's a marked depression from Cao Bang to The ocean. From the Purple River delta and from the valleys in the region’s other big