Manual Green Screen,Portable Green Screen,Tripod Green Screen Dongguan Aoxing Audio Visual Equipment CO.,Ltd , https://www.aoxing.netQuickly read the text, retell the storyline, and think: What is the typical environment (time background) for the development of the storyline? Typical environment: The traditional civilization invaded by ancient powers in ancient China at the end of the Qing Dynasty was strongly shocked by the violent winds of capitalism.