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关注：1
2013-05-23 12:21
求翻译：there are known known,there are known unknown and there are unkown unknown是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
there are known known,there are known unknown and there are unkown unknown
问题补充： |
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2013-05-23 12:21:38
[object Object]
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2013-05-23 12:23:18
there are known known, there are known and unknown unknown there are unkown
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2013-05-23 12:24:58
there are known known, there are known unknown and there are unkown unknown
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2013-05-23 12:26:38
there are known known,there are known unknown and there are unkown unknown
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2013-05-23 12:28:18
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