It's a protective mechanism by which we can survive our journey to whence we're going -by which 可以去掉 by 嗎？ -整段怎翻? -可寫survive in our...嗎？
...名詞子句是delayed subject） Because of this protective mechanism. we can survive our journey to a certain place. 因為（大腦）有這種防衛機制，我們外出某...
黎安萊姆斯-how do i live If you ever go 如果你真的要走 How do I ever, ever survive 我怎麼活的下去
Decide what you would need to survive by yourself for two weeks in the wilderness. 先決定你需要什麼東西...