warm something up

Từ điển Oxford Advanced Learner 8th

▪ I. ˌwarm sthˈup derived
to heat previously cooked food again for eating
Main entry: ↑warm_derived
 
▪ II. ˌwarm ˈup | ˌwarm sb/sthˈup derived
to become more lively or enthusiastic; to make sb/sth more lively or enthusiastic
• The party soon warmed up.
Main entry: ↑warm_derived