on somebody’s heels
US /ɑn ˈsʌm.bə.diz hiːlz/
UK /ɑn ˈsʌm.bə.diz hiːlz/

1.
membuntuti, mengikuti dari dekat
following closely behind someone
:
•
The police were right on his heels after the robbery.
Polisi langsung membuntuti dia setelah perampokan.
•
Success came quickly, with problems often on its heels.
Kesuksesan datang dengan cepat, dengan masalah seringkali mengikutinya.