About the Authors

Xinxin Shan

Contributed equally to this work with: Xinxin Shan, Zaibing Luo

Roles Investigation, Methodology, Writing – original draft, Writing – review & editing

Affiliation Foreign Languages and Literature, University of South China, Hengyang, Hunan, China

Zaibing Luo

Contributed equally to this work with: Xinxin Shan, Zaibing Luo

Roles Writing – review & editing

Affiliation School of Foreign Languages, Southwest Jiaotong University, Chengdu, Sichuan, China

Gengsheng Xiao

Roles Conceptualization, Supervision

xiaogengsheng@usc.edu.cn (GX); liubin@usc.edu.cn (BL)

‡ These authors also contributed equally to this work.

Affiliation Foreign Languages and Literature, University of South China, Hengyang, Hunan, China

Bin Liu

Roles Methodology, Supervision

xiaogengsheng@usc.edu.cn (GX); liubin@usc.edu.cn (BL)

‡ These authors also contributed equally to this work.

Affiliation Foreign Languages and Literature, University of South China, Hengyang, Hunan, China

Competing Interests

The authors have declared that no competing interests exist.