Past-participle-derived adjective, usually followed by a preposition (in, with) and often modified by an adverb such as “well”.
She is well versed in classical literature.
Она хорошо опытна в классической литературе.
The lawyer is versed in international law.
Адвокат искушён в международном праве.
He is versed in multiple programming languages.
Он знающий в нескольких языках программирования.