欧美日韩性大香蕉|精品无码成人视频|永久久久久久久久|日韩加勒比偷拍网|婷婷伊人久久蜜桃|亚洲理论中文字幕|中文无码黄色Av|三级一区二区三区|超碰在线精品专区|国语对白一级A片

China / China

Piano-style stairs in Hangzhou

(Xinhua) Updated: 2012-10-10 09:43
Piano-style stairs in Hangzhou

Pedestrians walk on the piano-style stairs at the Wulin Plaza in Hangzhou, capital of East China's Zhejiang province, Oct 9, 2012. The stairs are able to make relevant sounds when people foot on the "key" of its steps. [Photo/Xinhua]

Highlights
Hot Topics

...