longitudinal study

• 纵向研究

longitudinal study的用法和样例：

例句

1. A great deal of longitudinal and training researches found that there was a reciprocal causal relationship between phonological awareness and reading achievement.
   大量的纵向研究和训练研究发现语音意识与阅读能力获得和发展之间存在双向的因果关系。