释义
n.
a process or record of research in which detailed consideration is given to the development of a particular person, group, or situation over a period of time
个案研究；个案史。
a particular instance of something used or analysed in order to illustrate a thesis or principle
（供研究的）个案
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airline deregulation provides a case study of the effects of the internal market .解除对航空业的管制为研究国内市场效应提供了案例。
