long on
US /lɔŋ ɑn/
UK /lɔŋ ɑn/

1.
riche en, abondant en
having a large amount of something, especially a quality or characteristic
:
•
The new manager is long on promises but short on delivery.
Le nouveau manager est riche en promesses mais pauvre en réalisations.
•
This report is long on theory and short on practical solutions.
Ce rapport est riche en théorie et pauvre en solutions pratiques.