。
She is polite.
Literal
She [topic-は] well-mannered.
礼儀正しい (れいぎただしい) is a compound i-adjective meaning 'polite, well-mannered' — literally 'correct in etiquette.' It combines the noun 礼儀 ('etiquette, manners') with 正しい ('correct'). A concise way to describe someone's demeanor.