case research

• 个案调查

case research的用法和样例：

例句

1. By using questionaire and case study, the writer did an investigation on the idea of health and sports of the staff of Bohai University.
   摘要采用问卷和个案调查统计法对渤海大学在职教工的健康意识及体育行为做了调查研究。