Pupils tie a piece of paper calling for civilized travel on shared bikes in Tianjin, north China, March 21, 2017. Shared-bike program which is popular in Chinese metropolitan cities, has caused troubles like traffic jams, confusion in parking and vandalism. Many cities have already started to regulate bike sharing services. (Xinhua/Liu Dongyue)
Green travel, healthy life
Source: Xinhua| 2017-07-05 15:13:30|Editor: ZD
KEY WORDS: Tourists
YOU MAY LIKE
MORE PHOTOS