颠来倒去
diān​lái​dǎo​qù

over and over

  1. 颠 顛 diān verb
    to invert
    to turn upside down; to put in reverse order; to confuse or muddle up
  2. 来 來 lái prepositionverb
    in order to
    Used between two verb phrases to show that the first action is the means or method used to achieve the second goal
  3. 倒 dào verbnoun
    inverted
    upside down; reversed; in reverse order
  4. 去 qù particle
    [direction]
    Used after a verb to indicate movement away from the speaker, or used after certain verbs to indicate detachment or separation