About the Authors

Xiangyan Zhou

Roles Conceptualization, Data curation, Funding acquisition, Investigation, Methodology, Writing – original draft, Writing – review & editing

934590502@qq.com

Affiliations School of Foreign Studies, Hunan University of Humanities, Science and Technology, Loudi, China, College of Foreign Languages, Hunan University, Changsha, China

Xiaodong Liu

Roles Funding acquisition, Writing – review & editing

Affiliation School of Foreign Studies, Hunan University of Humanities, Science and Technology, Loudi, China

Competing Interests

The authors have declared that no competing interests exist.