I enjoy the term 'caveman diet' so I'll be referring to it as that.(我喜歡“穴居人飲食法”這個說法，所以提到這一飲食方法時我就會這樣說。)

When my teacher handed it to me, Iturned it over to see that he had drawn a caveman shooting arrows at mydinosaur.(卷子判完以后，我拿過來一看，老師畫了一個原始人，用箭射死了它。)

Part of the fault lies with our inner caveman.(部分原因在于我們內心的穴居人。)

Morgan: You know, people have been wondering about how the universe began probably since the caveman, right.(摩根：人們可能從穴居起就開始猜測宇宙是怎么開始的。)

Do you really think you're a caveman?(你真覺得自己是個穴居人嗎?。)

The bones of caveman were discovered in this very cave.(原始穴居人的骨頭就是在這個山洞里發現的。)

Actually, you don't have to be a caveman to survive in the woods.(事實上在野外你不必像洞穴人一樣生存。)

In other words, our inner caveman is continually looking over his shoulder to see what the rest of the tribe are up to.(換句話說，我們內心深處的穴居人在不斷地回頭看，看看部落里的其他人在做什么。)

How do we convince our inner caveman to be greener?(我們如何說服我們內心的穴居人變得更環保？)

Without it, you might as well be some caveman, lost in time and pounding out text-messages on cavern walls in pig blood.(沒有它，你也可能是一些野人，時間損失和沖擊的文字，對洞穴的墻壁郵件豬血。)