Are you ready for the cold waves? (7)

Hangzhou, Zhejiang

Children and their parents enjoy scenery of the West Lake in spite of freezing cold air in Hangzhou, east China's Zhejiang province on Jan. 21, 2016. Local education authorities also allowed students to stay home from school. The students are expected to return to school on Jan. 26, 2016. (Xinhua/Huang Zongzhi)

Photo taken on Jan. 21, 2016 shows that tortoise-shell bamboos, also known as mao zhu, are covered with snow in Hangzhou, east China's Zhejiang province. (Xinhua/Huang Zongzhi)