TimeTrex requires that the locale for each language is installed on your operating system, for Chinese language its the "zh_CN" locale. You can find more information about that here: https://askubuntu.com/questions/76013/h ... ntu-server
Thank You
My system Locale like this ,but login page is still have not chinese
And when i login in ,My Account --Preferences Language List don't have chinese
I looked into this more and it appears the Chinese translation wasn't kept up-to-date and dropped below the 90% translation level, so it was removed at the beginning of 2019.
If you wish to contribute, we have instructions on how you can do so here: viewtopic.php?f=5&t=707