become second nature

Translations
стать второй натурой
After years of practice, playing the piano has become second nature to him.
После многих лет практики, игра на пианино стала для него второй натурой.
Definitions
To become so familiar with or practiced at something that it is done easily and automatically, without conscious thought.
Words
become

verb
становиться
second

adjective
второй
nature

noun
природа