People refuel their cars at a gas station in Tehran, Iran, Nov. 21, 2019. (Photo by Ahmad Halabisaz/Xinhua)
Smart cleaning robot seen on street in Hohhot, China's Inner Mongolia
International exhibition on modern railways held in Beijing
Integrated development of cultural, tourism industry in north China's Hebei
World's only captive brown giant panda adopted
Locals to benefit from road building as part of poverty alleviation efforts in China's Guangxi
View of mountains in Yushu, NW China
In pics: view along Lijiang River in Guilin, S China
Aerial view of Jinan city in E China