亚洲精品无播放在线播放,精品国精品自拍自在线,免费国产污网站在线观看不要卡,97色欧美视频在线观看,久久精品本无码一本,国产精品高清视亚洲一区二区,全部无码特级毛片免费播放

A general view of the polluted Lanzhou section of Huanghe River in Lanzhou, capital of northwest China's Gansu Province October 22. A sewerage pipeline released red sullage to the river and the cause of the pollution is under investigation.

A sewerage pipeline releases sullage to the river.

Local residents look at the polluted river at the Lanzhou section of the Yellow River.

(China Daily October 24, 2006)