amnesia
[æmˈni:ʒə]
n.
遗忘（症），记忆缺失;
善忘;
易忘症;
健忘;
例句:
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Conveniently, he had developed amnesia about that part of his life.
他得了健忘症，记不起那一段生活了，倒也省心了。
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Like lifelong amnesia and a year in The Priory drunk.
来自THETIMES
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"Could he be suffering from amnesia?" I suggested.
“他是不是患了健忘症？”我试探着问道。
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It is sad that many people have got amnesia when they come out from disasters.
许多人渡过灾难以后都得了健忘症,这是可悲的.
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Was he trying to justify amnesia, our amnesia?
来自NEWYORKER
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He wakes up in the desert shackled and with amnesia.
来自VOA