When I was playing in creative in the new Minecraft 1.6.1 official release, I changed language to Swedish and I looked at some new items to see if they we're translated, but no. The new items (or at least some) haven't been translated to Swedish.
MC-20151
Untranslated Items for Swedish
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This ticket is a language translation change/add request and is currently not supported on this bug tracker.
Please use the Crowdin Minecraft Translation Project for all translation change/add requests.