alter ego

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In many ways, because Thrasymachus could be seen as Socrates' alter-ego in some way, his sort of evil twin.
多方看來都是如此，因爲，Thrasymachus，多少可以看成是,囌格拉底的另一個自我，類似但邪惡的孿生化身。
Our little shy alter-ego tells us at this point that no one wants to know our name and we should just keep quiet.
我們小小的害羞個性告訴我們，這時，沒人想要知道我們的名字，我們衹要保持安靜。
In a recent CopyBlogger article, Johnny B. Truant talks about his alter-ego.
在近期的一篇轉載的博文中，Johnny B.Truant談到了他個性的另一麪。

In many ways, because Thrasymachus could be seen as Socrates' alter-ego in some way, his sort of evil twin.
多方看來都是如此，因爲，Thrasymachus，多少可以看成是,囌格拉底的另一個自我，類似但邪惡的孿生化身。
耶魯公開課 - 政治哲學導論課程節選

In the interim, I recommend you use social media and the Internet to find your alter-ego.
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The Amazing Spider-Man tells the story of teenage Peter Parker, who grapples with both high school and amazing super-human crises as his alter-ego Spider-Man battles The Lizard.
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Later on in the game you can also tap into your darker side, invoking your Jack the Ripper alter-ego which gives you an extra combat boost for a short period of time.
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Your alter ego is the other side of your personality from the one that people normally see.
You can describe the character that an actor usually plays on television or in films as their alter ego.