接下来有请本次大赛的承办单位代表海南师范大学陈封椿致欢迎辞。

Thank you professor Chen. Let's welcome Professor Zhang Chengyi to give us a speech. Let's welcome.

youdao

接下来有请本次大赛的承办单位代表海南师范大学陈封椿致欢迎辞。

Thank you professor Chen. Let's welcome Professor Zhang Chengyi to give us a speech. Let's welcome.

youdao