About the Authors

He Dong

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

Affiliation Department of Chinese and Bilingual Studies, The Hong Kong Polytechnic University, Hung Hom, Hong Kong

Pan Zhao

Roles Data curation, Supervision, Writing – review & editing

Affiliation Department of Chinese and Bilingual Studies, The Hong Kong Polytechnic University, Hung Hom, Hong Kong

Cindy Sing Bik Ngai

Roles Investigation, Methodology, Supervision, Writing – review & editing

cindy.sb.ngai@polyu.edu.hk

Affiliation Department of Chinese and Bilingual Studies, The Hong Kong Polytechnic University, Hung Hom, Hong Kong

Competing Interests

The authors have declared that no competing interests exist.