He's universally recognized as an authority on Russian affairs.

　　他被公認為是俄羅斯事務的權威。

　　The princess was not recognized and mingled freely with the crowds.

　　公主沒有人認出，隨意混雜在人群之中。

　　The college is not an officially recognized English language school.

　　那所學院不是官方認可的英語學校。

　　The Snoqualmie tribe regained its status as a federally recognized tribe.

　　斯諾夸爾米部落重新獲得了聯邦政府所承認的部落的身份。