On Sat, 11 Feb 2017 08:22:19 +0800, 積丹尼 Dan Jacobson wrote:
> We proceeded to dig up 些 some Canna edulis Ker 食用美人蕉
> when surprise surprise...

> and do  M-h  then  M-q
> It becomes

> We proceeded to dig up 些 some Canna edulis Ker 食用美人蕉when
> surprise surprise...

> I.e., the "食用美人蕉when" are now stuck together, making our text
> look very unprofessional.

Fixing such things one by one manually is my routine, too.  But
I first tried:

* lisp/textmodes/fill.el (fill-delete-newlines):
Don't delete leading and trailing space from CJK word.

I'm not sure if it is the right solution for every case, though.