求拉姆斯费尔德的那段著名的饶口的话?

黑铁矮人2022-10-04 11:39:541条回答

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victortom 共回答了15个问题 | 采纳率86.7%
"As we know, There are known knowns. There are things we know we know. We also know There are known unknowns. That is to say We know there are some things We do not know. But there are also unknown un...
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