I've found no way to show text (even not Chinese characters) in metapost using
ghostview directly. namely:
%mpost name.mp
%kghostview name.1
will not show any texts.
It makes me crazy. finally I found a way:
1. include name.1 in a latex file. say, name.tex
2. %latex name.tex # produce name.dvi
3. %dvi2ps name.dvi # produce first.ps
In this (ugly) way, I can see what I've typed in: "I am so moving, o o o...".