About Russian Language
According to Wikipedia.org, Russian is a popular East Slavic language. It is widely spoken in Russia and Eastern Europe. This is a part of the Indo-European language family and is among the four living East Slavic languages. Russian is the official language of Russia, Belarus, Kazakhstan, and Kyrgyzstan. Interestingly widely spoken in Ukraine, the Caucasus, Central Asia, and many other Baltic states. Russian is spoken by over 258 million speakers all over the world. It is written in the Cyrillic script. You can easily distinguish between consonant phonemes with palatal articulation. It has a combination of soft and hard sounds. This distinction is a prominent feature of Russian. Another aspect is the reduction of vowels that are not stressed. Some homographic words include замо́к (zamók – a 'lock') and за́мок (zámok – a 'castle'). You may not be able to indicate the pronunciation of uncommon words.
About Czech Language
According to Wikipedia.org, Czech is also known as Bohemian. It is a West Slavic language of the Czech–Slovak group and is written in the Latin script. The language is spoken by over 10 million people and is the official language of the Czech Republic. The language is related to Slovak and is similar to Polish to a lesser degree. It is a fusional language and has a flexible word order. Its vocabulary is influenced by Latin and German. The Czech–Slovak group developed the language in the high medieval period. The standard Czech and Slovak in the Czech–Slovak dialect emerged in the early modern period. In the 18th and -19th centuries, the modern context of the language emerged. The Moravian dialects of Czech are spoken in the eastern part of the country. Czech comprises ten monophthongs, three diphthongs, and 25 consonants. The Czech words contain complicated consonant clusters but lack vowels. Czech is represented by the grapheme ř and has a simple orthography.