Guests take group photos in front of Toyota Motor Corp's hydrogen fuel cell truck for pilot project with Seven-Eleven in Tokyo, Japan, June 6, 2018. (Xinhua/Hua Yi)
In pics: view inside greenhouses in N China's Hebei
In pics: curtain wall project of sky corridor in SW China's Chongqing
Making traditional handicrafts increases income of local women in SW China's Guizhou
Over 7,000 heavy-haul freight train trips made on Watang-Rizhao Railway in 2018
Snow scenery of Washington D.C.
Frosty scenery seen in Tianjin