精神力学

例句：

1. 1. The study of psychology is a branch of the science of human behavior.
   心理学是研究人类行为的一门科学分支。
2. 2. The psychologist's job involves analyzing and interpreting data from various sources to gain insights into human behavior.
   心理学家的工作涉及分析并解释来自各种来源的数据，以获得对人类行为的见解。
3. 3. The researcher found that stress can have a significant impact on mental health.
   研究者发现压力对心理健康有显著影响。