You could search for professional translators like myself (though I don't do Chinese, I know someone who does), though of course you will have to pay.
The thing about translation is that you get what you pay for - so something like a free Internet machine translation service will give poor translation, which may also be the case if you take it to someone 'down the local takeaway'.
When looking for translators, you really need a native speaker of the language you're translating into to do it (i.e. English), as they will be able to render the text better into the target language.
Just my �0.000002 worth.