About the Authors

Qian Shen

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Validation, Writing – original draft, Writing – review & editing

93761556@qq.com

Affiliation English Department, North China Electric Power University, Baoding, Hebei, China

Yating Tao

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Software, Validation, Writing – original draft, Writing – review & editing

Affiliation English Department, North China Electric Power University, Baoding, Hebei, China

Competing Interests

The authors have declared that no competing interests exist.