Russian ⇄ English

нагнетать напряжение stresses
gen.	build up; pile up the agony; pile on the pressure (Anglophile); stoke tensions (Moscow accuses Nato countries of "pumping" Ukraine with weapons and the US of stoking tensions. bbc.com 4uzhoj)
Игорь Миг	turn up the heat
inf.	pile on the agony
Makarov.	build up (в пьесе и т. п.)