Usages of proč
Proč mi dnes nedáš odpověď na moji otázku?
Why won't you give me an answer to my question today?
Proč tvoje babička ještě není doma?
Why is your grandmother still not at home?
Důvod, proč chodím nejčastěji do knihovny, je ten, že je tam ticho.
The reason why I most often go to the library is that it is quiet there.
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