Thank you for your reply. I can send you the schinese file, so you only need to add the following line of code:
vbox:
style_prefix "radio"
label ("Language")
textbutton ("English") action Language(None)
textbutton ("简体中文") text_font "tl/schinese/fonts/MiSans-Regular.ttf" action Language("schinese")
Wishing you smooth development. Feel free to contact me anytime if needed :)