Undated file photo shows workers making silk flowers at a factory in Shatoujiao Township of Shenzhen, south China's Guangdong Province. The Chung Ying Street (Chung Ying means China and Britain), linking Shenzhen of Guangdong Province and Hong Kong in south China, has once again set sail in the development of the Guangdong-Hong Kong-Macao Greater Bay Area and embarked on a new journey towards high-quality development. (Xinhua/Yang Zhenhe)