Google allows users to see what information it holds about them, and lets them delete their search histories or modify the targeting of advertising, for example.
例如，谷歌允许它的用户了解它掌握的关于他们的信息，并且让他们删除他们搜索历史或者修改广告目标。
It can't add documents to the database, delete documents from the database, modify existing documents, or do anything else, which is a pretty gaping hole in its capabilities.
它不能向数据库中添加文档、从数据库中删除文档、修改已有的文档或者其他操作，这是其功能中的一个很大漏洞。
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