Class sheets are not applied on document translations

My steps as below:
1. Create a data type CarClass. (lang=en)
2. Create class sheets and bind it. (lang=en)
3. Add FordPage. (lang=en)
4. Add a CarClass object to the page.

And then xwiki can render html of FordPage as sheet content correctly.
After that, I create a translation document of FordPage (lang=zh_TW).
I found that xwiki would not render the sheet content when I visit FordPage as lang=zh_TW.
It just render the content of FordPage(lang=zh_TW).