How to say in Czech: Where do we know them from?

English
Where do know from?
Czech
Odkud je známe?
Where are you going?
Where do we buy a ticket?
We do not know them.
Do you understand them?
We have known them for a long time.
We know them well.
We would like to get to know them better.
Where are we from?
Where do we live?
Everybody wants to get to know them.

Czech phrasebook and translator with tens of thousands of sentences translated by humans. Czechslator is being developed by Michal Měchura. CREDITS Czechslator's sentence generation engine is partially based on Grammatical Framework. All Czech pronunciation is computer-generated using Microsoft Azure Text to Speech. When Czechslator cannot find a translation in its own database, it looks in the PanLex dictionary or obtains a machine translation from Microsoft Translator. PRIVACY Czechslator does not save any cookies in your web browser and does not collect personally identifiable data. Czechslator uses StatCounter for traffic analysis, configured not to save any cookies in your web browser and not to collect any personally identifiable data.