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就算有 Patent 都很難實行，大抵只可向大廠收錢？ Patent 實在被越用越濫了~

A system highlights search terms in documents distributed over a network. The system generates a search query that includes a search term and, in response to the search query, receives a list of one or more references to documents in the network. The system receives selection of one of the references and retrieves a document that corresponds to the selected reference. The system then highlights the search term in the retrieved document.