furiously, madly, wildly, frantically, extremely
Он бешено мчался по дороге.
He was speeding madly along the road.
Собака бешено лаяла на прохожих во дворе.
The dog barked furiously at passers-by in the yard.
Ветер бешено трепал флаги на крыше.
The wind wildly whipped the flags on the roof.
Она кива́ла, её се́рдце бешено стуча́ло в груди.
She nodded, her heart pounding wildly in her chest.
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