单词是particular，意思是特殊的，例如：
1、I remembered a particular story about a postman who was a murderer.我记得有个故事，讲的是一个邮递员杀人的事情。
2、A call to a certain telephone number is called a station-to-station call while a call to a particular person is called a person-to-person call.与某一受话电话号码通话的电话叫做叫号电话，而与特指的个人通话的电话叫做叫人电话。
