在忽明忽暗的竖井灯光的指引下，援救队伍在黑暗的废墟中开辟道路寻找幸存者。
Guided by periodic shafts of light, rescue teams made their way through the pitch-black as they searched for survivors.
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暗井是地道内的下沉竖井。
A shaft sunk inside a tunnel is called a winze.
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