。
She translated the book from Japanese into English.
Literal
She [topic-は] that book [object-を] Japanese [from-から] English [to-に] translated.
翻訳する ('to translate') is the catch-all verb for translation, while 通訳する ('to interpret') covers spoken interpretation — the distinction is rigid in Japanese, unlike English's looser usage. The pattern X から Y に ('from X to Y') marks transformation or movement between two states, here two languages. Translation between Japanese and English is a long-established field; thousands of works flow each direction every year, supported by major publishing houses and a robust translator profession.