Photo taken on Wednesday at the Windy Hill Open Space Preserve of San Mateo County shows the dense smoke caused by wildfires in the San Francisco Bay Area, California. (Photo: Xinhua)

Rescuers transfer flood-stranded people from Fengzhou Island in Leshan, southwest China's Sichuan Province on Tuesday. (Photo: Xinhua)

Officers from the Harbin City Fire and Rescue Detachment in northeast China's Heilongjiang Province held a group wedding for 10 couples at a training base in the city on Wednesday. (Photo: VCG)

Aerial photo taken on Friday shows the cruise ship MSC Grandiosa sailing into the Port of Valletta, Malta, becoming the first cruise liner to arrive since the island closed its ports in March to curb the spread of the coronavirus. (Photo: Xinhua)

A woman and her child visit the 2020 Beijing International Light Festival at Yuyuantan Park in Beijing, capital of China, on Thursday. The exhibit mixed light, laser light, images, music and performances with the natural landscape of the park, providing an immersive experience for visitors. (Photo: Xinhua)

Workers lay tracks at the construction site of the Beijing-Xiongan intercity high speed railway in Xiongan New Area, north China's Hebei Province. The last 500 meter-long tracks of the Beijing-Xiongan intercity railway were installed on Monday, which completes the construction of the railway. (Photo: China News Service)

A worker fumigates a public housing estate to kill Aedes mosquitoes as part of dengue prevention in Singapore on Saturday. (Photo: Xinhua)

Palestinian protesters clash with Israeli border police and soldiers during a protest against the expansion of Jewish settlements and the Israeli annexation plan, in the village of Kifl Haris near the West Bank city of Salfit, on Saturday. (Photo: Xinhua)

People offer prayers at a mosque in Srinagar city, the summer capital of Indian-controlled Kashmir, on Friday. Local authorities have allowed the reopening of mosques and other religious places after being closed for months due to the COVID-19 pandemic. (Photo: Xinhua)

A self-driving bus of Bus Line 1 runs in Zhengzhou, central China's Henan Province, on Wednesday. Combining technologies like 5G network and artificial intelligence with a smart supervision and control system, test runs of the bus were recently conducted in Zhengzhou. (Photo: Xinhua)