take something back   
phrasal verb with take verb uk/teɪk/ us/teɪk/ took | taken
  (SOMETHING BOUGHT)      
 B1 退回(从商店里购买的东西)
to return something you have bought to a shop
  Is it too small? Take it back and get a refund. 太小了吗?那就把它退了吧。 
 - More examples
 - If the skirt doesn't fit, you can take it back.
 - I took the radio back because it was faulty.
 
  (STATEMENT)      
 收回(说错的话)
to admit that something you said was wrong
  All right, I take it all back. It wasn't your fault. 好吧,我收回我说过的话。那不是你的错。 
 - More examples
 - He refused to take back his assertion that I had lied.
 - OK, I take it all back - Florida was a fantastic place for a holiday.