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