There are countless lives passing away in the tunnel.
穿越时空的隧道，无数的生命在流逝。
Passing through the Colorful Tunnel is like entering into the time tunnel.
穿越这五彩缤纷的彩环隧道，犹如钻进了时空隧道。
Do research on tunnel passing through bad geological section.
隧道穿越不良地质段施工技术的研究。
Do research on tunnel passing through bad geological section.
隧道穿越不良地质段施工技术的研究。
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