论述高校图书馆拓展信息服务能力的必要性、可行性，探讨和阐述拓展信息服务领域的有效途径及具体措施。
It expounds the necessity and feasibility for extending college and university library information service area and also discusses the effective ways and specific measures.
TripAdvisor在今年初推出的酒店信息列表(Business Listings)可以让酒店发布联系信息以及网站链接，而现在这项服务即将拓展新的领域——发布酒店的优惠产品信息。
TripAdvisor Business Listings, which early this year began publishing hotels' contact information and links to their websites, will soon expand into listing hotels' special promotions.
图企联姻，是图书馆职能的外部延伸，可以拓展图书馆信息服务领域，深化其社会职能。
The alliance between library and company, which is the extension of libraries' function, has expanded the library information service and strengthened its social function.
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