максимальный размер(A central authority (usually a governmental body) sets a limit or cap on the amount of a pollutant that may be emitted. WAD Alexander Demidov)
ограничивать(creating a single ITV company (and thus a dominant sales proposition), puts a cap on what ITV is allowed to charge for airtime on its flagship ... Alexander Demidov)
серьёзно подумать над (чем-л.)(to think seriously about something: I need some interesting suggestions so if you can put your thinking cap on I'd be grateful.Bullfinch)
