剑桥大学的研究人员发现，近一半的社交网站在用户要求删除图片时不会立即删除。

Researchers at Cambridge University have found that nearly half of the social networking sites don't immediately delete pictures when a user requests they be removed.

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会议一结束，这个人就被要求辨认四张图片中哪一张被使用过。

Once the session was over, this person was asked to identify which of the four images had been used.

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有些孩子需要看很多图片，并要求很多详细信息。

Some need to see pictures and require a lot of details.

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You cannot just tell the computer to enhance that or can you clean that up and then magically use zoom in not only on the image but also on the reflection of the victim in someone's eyeball.

你不能直接要求计算机增强,这张图片或者修复它,然后期待计算机很神奇地放大图片,以及死者的眼珠的反光。

哈佛公开课 - 计算机科学课程节选