An aerial drone photo shows workers operating at the track laying construction site of the Wenling-Yuhuan section of Hangzhou-Taizhou high-speed railway in Taizhou, East China's Zhejiang province, Nov 5. Track-laying operation officially kicked off on Wednesday throughout the Wenling-Yuhuan section of Hangzhou-Taizhou high-speed railway. [Photo/tidenews.com.cn]