处理系统(比如搜索软件和个人软件)可以针对特定的用户群筛选和格式化内容然后提交给他们。

Processing systems (such as search and personalization software) can filter and format the content, targeting and delivering it to specific groups of users.

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例如，在处理表单中用户的输入时，您通常会检查提交的每个表单，以确保其中提供的是预期的内容（数字、邮政编码、字母字符等等）。

Well, when dealing with user input from forms, for example, you typically check each form submitted to make sure that it's what you expect (numbers, ZIP code, alphabetic characters, and so on).

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