bèi​duì​bèi

back to back

bèi​duì​bèi back to back

  1. back
    the back of a person or animal
  2. duì preposition
    to face
    to face; to be opposite to
  3. back
    the back of a person or animal

bèi​duì​bèi behind one's back

  1. bèi locativeadverb
    behind someone's back
    to do something in secret; to hide something from others
  2. duì preposition
    to face
    to face; to be opposite to
  3. bèi locativeadverb
    behind someone's back
    to do something in secret; to hide something from others