Table of Contents Translation
Do not translate the MS Word table of contents (TOC) at the beginning of the document. First translate the document containing all the chapter headings and sub headings. These will have been given a specific style (Heading1, Heading2, etc), which it is important to keep. When you have finished your document, return to the table of contents. Right-click on it; in the drop down menu, click on "Update field" and select to update everything.