754 篇文章
cut off from the outside world and from other caves.
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cut off from the outside world and from other caves. 与外界及其它洞穴隔绝

which they use as a refuge from predators.
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which they use as a refuge from predators. 这里是它们躲避天敌的地方

Fresh water from the jungle flows over the heavier salt water from the sea.
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Fresh water from the jungle flows over the heavier salt water from the sea. 咸水来自海洋 比重较重 来自丛林的淡水在其上方流动

Away from the life-giving rays of sunshine
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Away from the life-giving rays of sunshine 这里远离给予生命的阳光

Since the last Ice Age they've become cut off from the outside world.
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Since the last Ice Age they've become cut off from the outside world. 自从上一个冰川期以来 它们便已和外界隔绝

so the calcite forms decorations that hang from the ceiling -
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so the calcite forms decorations that hang from the ceiling - 方解石形成了悬在洞顶上的装饰物

often more than 60 metres from the floor.
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often more than 60 metres from the floor. 通常高出地面60多米

and using ladders made from forest vines the gatherers climb into the highest reaches of the cave
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and using ladders made from forest vines the gatherers climb into the highest reaches of the cave 采集者利用树藤编成的梯子爬到洞穴的最高处

Their little cup-like nests are made entirely from threads of saliva.
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Their little cup-like nests are made entirely from threads of saliva. 它们小巧的杯状燕窝完全由唾液丝筑建

Returning from hunting in the sunlight
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Returning from hunting in the sunlight 完成白天的狩猎工作后