Workers are seen at the construction site of the Tiaoshun bridge in Zhanjiang City, south China's Guangdong Province, July 6, 2019. The Tiaoshun bridge, linking Tiaoshun island and Haidong new area in Zhanjiang City, enters the construction phase of its main tower. The bridge has a length of 9.36 kilometers and its main tower measures 136.9 meters high. (Xinhua/Liu Dawei)