However, it collected not just anonymous and aggregated info, but unprotected personal information which may include emails and photographs.
但Google不仅收集了匿名和群体性数据，而且还收集了为受保护的个人信息，其中包括电子邮件和照片。
But they have found it difficult to explain why the son's mother and girlfriend - both of whom had substantial unprotected exposure to him during his hospitalisation - did not become infected.
但是他们也发现很难解释这个儿子的母亲和他的女朋友没有被传染的原因，这两个人在他住院期间也有充分未经保护措施的暴露接触。
But they have found it difficult to explain why the son's mother and girlfriend - both of whom had substantial unprotected exposure to him during his hospitalisation - did not become infected.
但是他们也发现很难解释这个儿子的母亲和他的女朋友没有被传染的原因，这两个人在他住院期间也有充分未经保护措施的暴露接触。
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