our ancestors could well have been successful in using very basic weapons to hunt down their meat.我們的祖先僅憑極其基本的武器即可成功捕捉到他們所需的肉

hunt down追捕…直至捕獲；搜尋…直至發(fā)現(xiàn)

I hunted down the woman who stole my baby.

我追蹤到了這個(gè)偷了我孩子的女人。

Professor Jones hunted down the written manuscript in the library of Congress.

瓊斯教授在國會(huì)圖書館找到了手稿。

You have to be tough and clever to be able to live like this,只有身手矯健警覺機(jī)靈 ，才有可能吃到肉

be able to會(huì)； 能

A good lawyer might be able to get you off.

請位好律師有可能使你免受追究。

You'll be able to come, won't you?

你能來的，對嗎?