Every web surfer, in the course of his or her browsing, has been forced to stop and perform this weird little task.

每一个互联网用户在浏览的过程中，都不得不停下来完成一个奇怪的小任务。

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Every web surfer, in the course of his or her browsing, has been forced to stop and perform this weird little task: look at a picture of some wavy, ghostly, distorted letters and type them into a box.

每一个互联网用户在浏览网页的过程中，都不得不停下来完成一个奇怪的小任务：将一张图片中波浪的、朦胧的或者扭曲的字母辨认出来，并把它们填到一个小方框里。

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