They must guarantee a level playing field in terms of competition.
If the tax systems are different in each European country, how can industries start on a level playing field?;
a situation in which different people, companies, countries, etc can all compete fairly because no one has special advantages: Small businesses want to compete on a level playing field with larger ones.
Anglais mot "równe szanse"(a level playing field) se produit dans des ensembles: