in harness

Từ điển Oxford Advanced Learner 8th

▪ I. in ˈharness idiom
(BrE)doing your normal work, especially after a rest or a holiday
Main entry: ↑harness_idiom
 
▪ II. in harness (with sb) idiom
(BrE)working closely with sb in order to achieve sth
•They'll be working in harness with other doctors to compile the report.
Main entry: ↑harness_idiom