停电期间发生的一件奇怪的事情是，大约五十名盲人引导许多视力正常的工人回家。

One of the strange things that occurred during the power-cut was that some fifty blind people lead many sighted workers home.

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他甚至还和视力正常的孩子一起奔跑玩耍。

He even ran and played with sighted children.

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我有时试探视力正常的朋友，想弄清楚他们看见了些什么。

Now and then I have tested my seeing friends to discover what they see.

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