当1951年快速眼动睡眠状态被发现的时候，它被描述成“大脑的新大陆”【来源：谢弗】。

When the dreaming state of REM sleep was discovered in 1951, it was described as a "new continent in the brain" [source: Schaffer].

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是的，新大陆已经被发现。

Yes, continents have been found.

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Columbus was the man who was attributed to having discovered America.

哥伦布被认为发现了美洲新大陆。

哥伦布的故事 - SpeakingMax英语口语达人