behind someone's back

Prepositional phrase

 * 1)  Without somebody's knowledge; secretly.

Translations

 * Chinese:
 * Mandarin:
 * Finnish: selän takana
 * French: ,
 * German: hinter jemandes Rücken;
 * Hungarian: a háta mögött
 * Indonesian: di belakang
 * Italian: alle spalle
 * Portuguese:
 * Russian:
 * Spanish: a espaldas de alguien, por la puerta de atrás
 * Swedish: ,