Have you tried this? If you run [YourSite]/wizard and select the version of English you want it should translate it all for you. 
(and there’s no need to do all the wizard steps. Just ‘next’ and ‘finish’)
Not sure why your site is in Chinese by default though?
And, if you still need it, this is found here:
(I’ve moved these over to your support topic to keep it all together )