Add comments in the section for Translations
Sometimes there are context-sensitive translations that lead to a small, but distinct difference in answers. (e.g. I just had to decide whether a word was gravitation or weight or mass) For a more collaborative effort, a comment pane for each translation may be useful to communicate misunderstandings, etc.
I was also thinking this recently and totally agree that this would be useful. Comments would definitely speed up translations. People could also post relative information on the topic and add better vocabulary hints.