People join the annual Pillow Fight on the occasion of Valentine's day in San Francisco, the United States, Feb. 14, 2020. (Photo by Li Jianguo/Xinhua)
People join the annual Pillow Fight on the occasion of Valentine's day in San Francisco, the United States, Feb. 14, 2020. (Photo by Li Jianguo/Xinhua)
People join the annual Pillow Fight on the occasion of Valentine's day in San Francisco, the United States, Feb. 14, 2020. (Photo by Li Jianguo/Xinhua)