> ie On the same page I want to have a meta description in
> Greek, French and a couple other languages.
It's possible, but only if the page is served in UTF-8
However, the value of doing so is highly doubtful. "Speed up
Web Site Optimization" published by New Riders in 2003 says
description should be no more than 25 words, and the keywords
should be 200 characters or less. The recommendations are
based on what
search engines actually use.
In fact, many people suggest that meta tags are of limited
days, because search engines look more for "relevant content"
simply at meta tags. If you have meta tags in Chinese, but no
content, they're likely to be ignored.