Imagine a search expression, in the "universal" (i.e. normal, or web) search form, like:
[dog from english to german]
or:
["hello world" from eng to fre]
that gives as result the translation of the word/expression you searched for, just like the conversion between units of measure and currencies actually works.

After this translation, there should 1) the dictionary
http://translate.google.com/translate_dict
and 2) the search results in the destination language
http://translate.google.com/translate_s

So, just as example, searching [dog from eng to ger], would give this result:

dog in English/Englisch = Hund in German/Deutsch

dog
1. Hund m 2. Rüde m 3. Bursche m 4. Besondere Redewendungen 5. auf dem Fuße folgen 6. verfolgen

Related phrases
* teach a dog obedience, teach (or train) a dog to be obedient (or to follow commands)
einem Hund Gehorsam antrainieren
* pedigree (or pure-bred) dog
Rassehund m n

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Related languages
dog is also a word in: Deutsch Italiano

Translated results from German web pages

Results 1 – 10 of about 2,490,000 for Hund.

English translation
Hunde.com – Hunde.com “everything approximately around the dog”
Portal side for associations and breeders. With race encyclopedia, dogs in emergency, meeting calendar, travel offers and Shop.
www.hunde.com/ – 14k – Cached

Original German
- Hide German results
Hunde.com – Hunde.com "Alles rund um den Hund"
Portalseite für Vereine und Züchter. Mit Rasselexikon, Hunde in Not, Veranstaltungskalender, Reiseangebote und Shop.
www.hunde.com/ – 14k – Im Cache

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A disclaimer about automatic translation

I've actually seen something like this in action on Google a while ago. I thought nothing of it at the time but can't reproduce it at the moment.

It basically worked like the Q&A OneBox results. Entering [hello in spanish] returned the Spanish word for "hello" above the normal search results, with a link to the reference it used. I thought it was weird at the time because it didn't use Google Translud.

(Sorry, I obviously meant Google Translate. I'm posting from my mobile and could see what I was typing...)