Understand that fear is a component of stress, the complex fight-or-flight response ingrained in us since the cave days.

要明白恐惧是压力的一个组成部分，它是一种与穴居时代俱来的“要么对抗，要么逃跑”的复杂反应。

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Some local Nepalese hunters found me and dragged me into a cave, where I lay on a rock for seven days.

一些当地的尼泊尔猎人找到了我，把我拖进一个洞里，我在里面的一块大石头上躺了七天。

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In the following 5 days, you will see Reed Flute Cave, Li River, Elephant Trunk Hill, Shilin, Dragon Gate, Lake Erhai, Three Pagodas, Naxi-Lijiang and Jade Dragon Snow Mountain.

在接下来的5天行程中，你将参观里海，象鼻山，石林，龙门，洱海，三塔，纳西-丽江和玉龙雪山。

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As featured in the Harvard Business Review, since the days of cave paintings, graphic depiction has always been an integral part of how people think, communicate, and make sense of the world.

FORBES: Visualization: A Picture Tells A Thousand Words

Instead of dispatching a young soldier to probe for a mine or search a cave, a commander these days often sends in a small robot.

WSJ: In the Afghan War, a Little Robot Can Be a Soldier's Best Friend

Sound engineer Olivier Warusfel spends most days sequestered in an audio cave with a computer.

NPR: IRCAM: The Quiet House Of Sound