Official Rosetta Stone® - Learn a Language Online - Language Learning
회사 설명:
rosetta stone is the world's #1 language-learning software. our comprehensive foreign language program provides language learning for individuals and language learning for organizations.
검색 하기 키워드:
language, learning, language learning, language-learning, foreign language, foreign language program, learn english, learn french, learn spanish, learn italian, learn german, language software, language technology