take something back

Từ điển Oxford Advanced Learner 8th

ˌtake sthˈback derived
1. if you take sth back to a shop/store, or a shop/store takes sth back, you return sth that you have bought there, for example because it is the wrong size or does not work
2. to admit that sth you said was wrong or that you should not have said it
•OK, I take it all back!
Main entry: ↑take_derived