Hey @ranwei-001
Answered your private message 
Here are my other answers:
- To build the editor you can follow the README here: Editor/README.md at master 路 BabylonJS/Editor 路 GitHub. Anyway you can download the official builds here: Getting Started - Babylon.js Documentation
- For the internationalization, I have an issue here: Editor with language choice 路 Issue #137 路 BabylonJS/Editor 路 GitHub will begin soon and help will be appreciated for chinese locales.
My question is: do you want to use the editor? Or extend the editor to fit your needs?
Thanks