Hi Ye Cheng,
Welcome.
Happy translation.
Your subscription to Simplified Chinese translation mailing list is
accepted now. Don't forget to post your self introduction there too.
If you have any question on translation or localisation, just ask on the
mailing lists or IRC channel(#fedora-zh, every Friday night is better).
I think these two pages[1-2] are good for you to start.
[1]
https://fedoraproject.org/wiki/L10N/Translate_on_Zanata
[2]
https://fedoraproject.org/wiki/%E4%B8%AD%E6%96%87%E6%9C%AC%E5%9C%B0%E5%8C...
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Regards,
Tian Shixiong
Fedora Project Contributor