美国德州南部5日凌晨发生毁灭性洪灾，至少造成50人丧命，包括15名孩童，洪水冲进河岸夏令营神秘营（Camp Mystic），已知至少4名学员丧命。

HOUSTON, July 7 (Xinhua) -- The death toll from flash flooding in central Texas has risen to 87, with dozens still missing as search and rescue efforts entered the fourth day on Monday, according to ...