Thanks for your reply~
Maybe I didn't make it clear in the email.
------First------
The agreement statement of the document:
“This document is Copyright © 2018 by the LibreOffice Documentation Team. Contributors are listed below. You may distribute it and/or modify it under the terms of either the GNU General Public License (http://www.gnu.org/licenses/gpl.html), version 3 or later, or the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), version 4.0 or later.”
( Note: Creative Commons Attribution License = CC-BY )
( Note: Creative Commons Attribution-ShareAlike = CC-BY-SA)
According to the statement, we can distribute the document only under the license of CC-BY 4.0 : Creative Commons Attribution License (version 4.0 or later).
So, the first thing is, changing the license to the only agreement of Creative Commons Attribution License (version 4.0 or later) is ok.
Then, the distribution behavior under the term of the license of CC-BY-SA 4.0, is in line with CC-BY 4.0 ( Creative Commons Attribution License)requirements.
So, I think we can distribution the document only under CC-BY-SA 4.0.
------Second------
Why change the agreement?
Without prejudice to the interests of the distributor, CC-BY-SA 4.0 respects the original author more than CC-BY 4.0: Creative Commons Attribution License (version 4.0 or later). I think this is the reason why the wiki page choose
CC-BY-SA(instead CC-BY).
And, I think that the best way to respect the original author is to choose CC-BY-SA instead of CC-BY.
Sometimes, in some places, CC-BY is not rigorous enough.
I hope that when the Simple-Chinese version is distributed later, it will be able to fully include the English version of the original author information and how it will be distributed.
------Third------
What I mentioned in the email is to change the Simple-Chinese book's license, NOT the English book's license.
In my Simple-Chinese version book:
The contents of the copyright are exactly the same as the original English version, including contributors (current edition and previous edition), no changes.
And, the copyright page number is the same as the English version: number 2, after the cover page.
And, using the same font size, the same font type, the same font color, and the same page layout as the English version book.
------Fourth------
Done. The above is my plan.
But before the distribution, I want to ask the documentation team member or original author for advice.