playing field

n.

运动场；比赛场地；

复数：playing fields

Leveling the carbon playing field
Video game system having an infinite playing field
From Partners to Players: Extending the HR Playing Field
Leveling the Carbon Playing Field: International Competition and US Climate Policy Design
Leveling the Carbon Playing Field: International Competition and US Climate Policy Design
Assessing the playing field: a prospective longitudinal study of internet sports gambling behavior.
Capital flows and emerging market economies: a larger playing field?
The poverty of forestry policy: double standards on an uneven playing field
A Powdery Mildew Fungus Levels the Playing Field for Garlic Mustard (Alliaria petiolata) and a North American Native Plant
Towards new institutional arrangements: Dutch fisheries management in the context of the EU playing field