Veteran guide John Robens (at far left) leads a soggy team through a moss-covered passage in Claustral Canyon, a few hours' hike from their exit point.
经验丰富的向导约翰·罗本斯(最左边)正带领一支浑身湿透的队伍穿越遁世峡谷中一段布满苔藓的通道，这里离峡谷的出口点已经有几个小时的行程了。
Their guide leads them through a narrow passage deep into the earth.
他们的向导带领他们通过一个深入地下的狭窄通道。
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