自然语言处理是信息时代的产物，它的主要研究对象为人—机语言交流问题。
As the product of language research and computing technology in information epoch, Natural language Processing mainly aims to solve linguistic problems in human-computer intercommunication.
大学生发送短信的主要对象是亲朋好友，内容主要是祝福类，目的是为了增进联络、交流感情、获取信息等。
Undergraduates mainly send benedictory short message to the families and friends to increase their relationship, communicate and get information.
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