2016年8月10日，浙江省杭州市，小汽车驶入杭州紫之隧道。紫之隧道是全国最长的城市隧道。[中国网图片库 龙巍 摄]
Vehicles come and go in the Zizhi Tunnel in Hangzhou, Zhejiang Province, on August 10, 2016. It is the longest urban tunnel in China. [Photo by Long Wei / photostock.china.com.cn]