The site requires users to provide their real names and e-mail addresses for registration, and it then links them up with current and former friends and colleagues with amazing ease.
该网站注册时要求用户提供其真实的姓名和电子邮件地址，然后它将会把注册者与其现在以及过去的朋友和同事链接起来，其方便程度使人惊叹。
Founded by the former head of Google health, Keas aims to provide tailored health programs for individual users by combining personal medical data with general health advice.
Keas由GoogleHealth前主管创立，旨在通过整合个人医疗数据和常规健康咨询，为每位用户量身定制健康方案。
The former smokers in the study were all heavy users who smoked at least a pack of cigarettes a day for 30 years or more, and all of them also showed signs of chronic bronchitis or emphysema.
该研究中戒烟者都曾是严重吸烟者，他们曾每天至少吸一包，时间长达30年或更久，而且他们也都出现慢性支气管炎或肺气肿的迹象。
The site requires users to provide their real names and email addresses for registration, and it then links them up with current and former friends and colleagues with amazing ease.
该网站要求用户提供他们的真实姓名和电子邮件地址进行注册，此后用户就能极其轻松地找到他们现在和以前的朋友及同事。
The former is implemented by creating index for the label text of image, and then the users can input keywords to search.
基于文本的查询技术是通过对图像资源中的标注文字建立索引，由用户输入关键字进行查询。
The former cann't get a satisfied precision and recall for users, while the later requires users have a high awareness of knowledge structure and shows a bad effect to knowledge search and resue.
前者无法满足用户对于查准率和查全率的要求，而后者需要用户对知识结构具有较高的认知，这影响了知识检索和重用的效果。
The former cann't get a satisfied precision and recall for users, while the later requires users have a high awareness of knowledge structure and shows a bad effect to knowledge search and resue.
前者无法满足用户对于查准率和查全率的要求，而后者需要用户对知识结构具有较高的认知，这影响了知识检索和重用的效果。
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