Photo taken on May 21, 2018 shows the construction site of the Poyang Lake No. 2 Bridge in east China's Jiangxi Province. The main structure of the bridge's main tower will be finished in June. The bridge linking Duchang County and Lushan City in Jiangxi is a key project of Duchang-Jiujiang expressway. (Xinhua/Fu Jianbin)

Photo taken on May 21, 2018 shows the construction site of the Poyang Lake No. 2 Bridge in east China's Jiangxi Province. The main structure of the bridge's main tower will be finished in June. The bridge linking Duchang County and Lushan City in Jiangxi is a key project of Duchang-Jiujiang expressway. (Xinhua/Fu Jianbin)

Photo taken on May 21, 2018 shows the construction site of the Poyang Lake No. 2 Bridge in east China's Jiangxi Province. The main structure of the bridge's main tower will be finished in June. The bridge linking Duchang County and Lushan City in Jiangxi is a key project of Duchang-Jiujiang expressway. (Xinhua/Fu Jianbin)

Photo taken on May 21, 2018 shows the construction site of the Poyang Lake No. 2 Bridge in east China's Jiangxi Province. The main structure of the bridge's main tower will be finished in June. The bridge linking Duchang County and Lushan City in Jiangxi is a key project of Duchang-Jiujiang expressway. (Xinhua/Fu Jianbin)