Wordbook's English-Czech Dictionary - http://www.wordbook.cz/index.php?int_kod=en Bi-directional translation. Combines Czech with English and German, Spanish, or French.
NetTown - http://slovnik.nettown.cz/ English-Czech and Czech-English on-line dictionary with a text-area.
Multilingual Dictionary - http://www.slovnik.cz/ Multi-directional service including Czech, English, German, French, Italian, Spanish, Russian, and Latin.
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