Zhang, Xiaodong http://orcid.org/0000-0001-7216-6542
Article History
Received: 1 May 2023
Accepted: 28 November 2023
First Online: 13 December 2023
Competing interests
: The author declares no competing interests.
: The study was approved by Beijing Foreign Studies University (2023SYLPY001). All procedures of the study involving human participants followed the ethical standards of the institutional committee at Beijing Foreign Studies University, China. The study was also conducted in accordance with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: All participants were first informed of the research purpose of the study and the ways the data would be used. The principal investigator also assured them that their personal information would not be revealed. All participants then gave their informed written consent for inclusion before they participated in this research (2021/9/24).