Passage 3
One project to overcome the limitations of the existing search engines is the EuroSearch project.EuroSearch is a federation of national search engines which gives much better results and is more suited to the challenges of the multilingual and multicultural global Internet. The founding members are national search engines from Italy, Spain and Switzerland. The multilingual approach allows a query to be entered in the preferred language of the researcher and the search engine takes care of the search on the search engines in the other languages.
Every national site that is part of the federation remains in the country of origin and is maintained by native speakers who will ensure that the search works in their own language. At the same time, the EuroSearch framework tries to remain open to other countries and services who would like to become part of the initiative.
20.Every national site that is part of the federation ______.