Hello Vlad,
You're welcome.
if you check on this 3 different Chinese version (China, Taiwan, HongKong), you will notice that was not 100% complete for translation.
https://www.transifex.com/projects/p/easysocial/language/zh_CN/
https://www.transifex.com/projects/p/easysocial/language/zh_HK/
https://www.transifex.com/projects/p/easysocial/language/zh_TW/
By the way, you can update the translate from this 3 of Chinese version before sign up an account from
https://www.transifex.com
you also can personally do the translation by yourself in this file ->
JoomlaFolder\language\xx-XX\xx-XX.com_easysocial.ini
But if you want to update to next version of Easysocial before you have to backup it. If not after you update to latest version of Easysocial, it will override back all your custom Chinese language string to normal.