Dear Alireza,
My job here is trying to make things work the way our webmaster determines.
There are many sites on the web which can provide translations obtained by means of automatic translation tools and although some simple sentences may get a quite correct version, the requester can never be sure about the accuracy of a longer text.
One of our aims on Cucumis.org is providing accurate translations done by
people who know
both the source and the target language very well.
The use of automatic tools by some of our members, notified by our experts, has led to the deactivation of many profiles. We don't like that, of course.
That's why one of the administrators' duty is keeping alert about translations done from/into languages that are not diplayed in the user's profile, like in this case.
I know you just want to help, but in case a doubt arises during the evaluation process, how will you defend your translation? Will you (and Cucumis) have to wait until your friend (the translator) is available?
Think about that
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works was clearly defined by Lilian in her post above, and this is the way we are intending to work on this site.