没有人知道这个山洞。
One young man finally blurted out his fear that they were still in the cave!
一个年轻人终于脱口而出，他担心他们恐怕还在山洞里！
For a cave man facing a tiger, this is a very healthy thing.
对于面对着一头老虎的穴居人类来说，这是件很健康有益的事情。
And the man in the cave is very difficult to get along.
和在洞穴里的男人相处是很困难的。
Without the fight-flight reaction, man would never have survived the cave and the jungle.
人类作出争斗或逃避的反应使其在远古时代得以在洞穴或丛林中生存。
这就是北京猿人洞了。
On the other hand, it's so easy a cave man can do it.
话又说回来，一个粗野的男人这么做，还是挺容易的。
A man and a child were found in the Cave-in produce truck.
一名男子和一名儿童在一辆撞毁的农用卡车上被发现。
Why would a man go to his cave when he has problems?
为什么男人有问题时要去他们的山洞？
This is the site of Upper Cave Man.
这就是山顶洞人的遗址。
Half convinced, the man raised another question that whether the ground would cave in.
这人半信半疑，又问道地是不是会陷下去。
The old man lit a candle in the cave.
老人在山洞里点燃一支蜡烛。
The man struck a match and made a fire in the cave.
那个人划了一根火柴，在山洞里生起了火。
The man struck a match and made a fire in the cave.
那个人划了一根火柴，在山洞里生起了火。
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