руското

In a sentence

• Руското знаме е трицветно.

  The Russian flag is tricolor.

  Here, 'руското' is used as a possessive adjective referring to something that belongs to Russia (the country).

• Четох книга за руското изкуство.

  I read a book about Russian art.

  Here, 'руското' describes 'изкуство' (art), indicating that it is related to Russia or has Russian origins.

• Интересувам се от руското кулинарно наследство.

  I am interested in the Russian culinary heritage.

  Here, 'руското' specifies 'кулинарно наследство' (culinary heritage), attributing it to Russia.