A man attends a flower arrangement class at "Youth Channel" in Shenzhen, south China's Guangdong Province, Sept. 2, 2020. Youth Channel is a community center providing lectures and cultural classes such as ukulele and flower arrangement class for youngsters after work. (Xinhua/Mao Siqian)

People attend a flower arrangement class at "Youth Channel" in Shenzhen, south China's Guangdong Province, Sept. 2, 2020. Youth Channel is a community center providing lectures and cultural classes such as ukulele and flower arrangement class for youngsters after work. (Xinhua/Mao Siqian)

People attend a flower arrangement class at "Youth Channel" in Shenzhen, south China's Guangdong Province, Sept. 2, 2020. Youth Channel is a community center providing lectures and cultural classes such as ukulele and flower arrangement class for youngsters after work. (Xinhua/Mao Siqian)

A woman shows her works during a flower arrangement class at "Youth Channel" in Shenzhen, south China's Guangdong Province, Sept. 2, 2020. Youth Channel is a community center providing lectures and cultural classes such as ukulele and flower arrangement class for youngsters after work. (Xinhua/Mao Siqian)

People attend a flower arrangement class at "Youth Channel" in Shenzhen, south China's Guangdong Province, Sept. 2, 2020. Youth Channel is a community center providing lectures and cultural classes such as ukulele and flower arrangement class for youngsters after work. (Xinhua/Mao Siqian)

People attend a flower arrangement class at "Youth Channel" in Shenzhen, south China's Guangdong Province, Sept. 2, 2020. Youth Channel is a community center providing lectures and cultural classes such as ukulele and flower arrangement class for youngsters after work. (Xinhua/Mao Siqian)