suddenly

to realize or notice something unexpectedly

to experience a quick onset of fear

to become scared in an instant

to be surprised or shocked unexpectedly

de repente alerta

to become watchful and attentive unexpectedly

tornar-se vigilante e atento inesperadamente

de repente cauteloso

to become cautious or suspicious unexpectedly

Tornar-se abruptamente cauteloso.

to cease an action or movement without warning

to start without warning

perceber de repente

to become aware of something unexpectedly

tomar consciência de algo inesperadamente

aparecer de repente

to come into sight unexpectedly

surgir inesperadamente à vista

lembrar de repente

to recall a memory without warning

recordar uma memória sem aviso

desaparecer de repente

to vanish from sight unexpectedly

sumir da vista inesperadamente

desaparecer de repente

to disappear from sight quickly and mysteriously

desaparecer da vista rápida e misteriosamente