Washington lived in an impoverished West Side community and has strong memories of preschool field trips to the library, zoo and planetarium where he learned to love science.
华盛顿住在贫困的西部社区，他深深地记得那时候在学前班时的图书馆，动物园和天文馆的活动，在那里，他学会了热爱科学。
Library is the field of spreading science and culture, which undertakes the mission of improving the quality of the national culture.
图书馆是传播科学文化的园地，肩负着提高全民族文化素质的使命。
The research of users' information need is always an attention hotspot in the international field of library and information science.
用户信息需求研究一直以来都是国际图书馆学情报学界所关注的热点问题。
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