Case histories show that all nations face recurring periods of economic fluctuations.

案例记录表明:所有国家都面临循环出现的经济波动期.

Case histories show that all nations face recurring periods of economic fluctuations .

案例记录表明：所有国家都面临循环出现的经济波动期。

A college professor had his sociology class go into the Baltimore slums to get case histories of 200 young boys.

大学教授在上社会学课的时候，让他的学生去巴尔的摩贫民窟找200个男孩的历史记录，并且要求写出对每个男孩未来的评估。

This paper reviews investigating and monitoring technologies and their applications through case histories in Japan.

本论文评阅了日本的调查和监测技术和通过实例分析的实际应用。

Real life case histories are to be reenacted by the students and problems that occur daily in a busy workplace have to be solved by the students in small groups.

课上将由学生进行现实生活案史重演并以小组的方式针对日常繁忙职场里出现的问题提供解决方案。