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很多术语都不像人话，特别是中文的，但是我也没得办法呀~摊手~
慢慢积累吧。
application vs utility from 微软计算机词典
application n. A program designed to assist in the performance of a specific task, such as word processing, accounting, or inventory management.
utility n. A program designed to perform a particular function; the term usually refers to software that solves narrowly focused problems or those related to computer system management.
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原文地址：http://www.cnblogs.com/pudding-ai/p/5667179.html
