他这样挑选了好多次后，有个好心的老人告诉他，一角的银币要值两个五分的镍币，以后应该选一角的银币。
When this had gone on many times, a kind old man told him that a dime was worth twice as much as a nickel, so he should choose the dime in the future.
五边形有五条边和五个角的多边形。
五角大楼仍在调查有多少资料被下载的，但一个人的知识攻击表示，大多数的信息可能是“机密” 。
The Pentagon is still investigating how much data was downloaded, but one person with knowledge of the attack said most of the information was probably "unclassified".
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