纪录片《熟食造就了人类吗》 第18期：170万岁的牙齿

（单词翻译）

The Australopithecus teeth, because they're big and flat,

南方古猿的牙齿 大而平

were very effective at crushing this food and fracturing it into two pieces.

因此对碾压食物 将其分成两半非常有效

Oh, that's cool.

太酷了

That certainly fractured it!

肯定把胡萝卜碾断了

But how did they deal with raw meat?

但是它们咬生肉如何呢

OK, it's set, my hands are out.

放好了 我手出来了

Big, flat teeth crushing raw meat doesn't work very well.

大而平的牙齿碾压生肉 效果不怎么好

Think of trying to smash a steak with a hammer -

想象一下用榔头猛捶牛排

it doesn't break it into many pieces,

它没法把牛排碾碎

it turns it into a bloody¹ mess.

只是将其变成血肉模糊的一片

Peter now prepares the jaws² of a more recent ancestor

彼得现在在安装一个 晚一些出现的古人颌骨

who may have been a hunter.

他可能是名猎人

Are these teeth more effective at dealing³ with this new diet?

这些牙齿更擅长咀嚼这种新食物吗

Wait, wait, wait!

等下等下

These are sharp teeth!

这些牙齿可锋利了

I don't want to get bitten by a 1.7-million-year-old mouth!

我可不想被170万岁的牙齿咬到

Let's see what kind of damage we did. - OK.

让我们看看它的破坏力 -好的