suddenly
Suddenly I became very sad.
De pronto supimos que era posible controlar la gravedad.
Suddenly we knew that it was possible to control gravity.
De pronto, mi padre ya no pensó que mi talento era inútil.
Suddenly, my father no longer thought my talent was useless.
— Ratatouille (2007)
Y de pronto se echa a reír tan feliz.
And suddenly he starts laughing so happily.
— La dolce vita (1960)
No es extraño que galaxias enteras desaparezcan de pronto.
It’s not unusual for entire galaxies to suddenly disappear.
De pronto miras atrás en lugar de adelante.
Suddenly you look back instead of forward.
— It's Such a Beautiful Day (2012)
De pronto, comenzaron a gustarle las historias de detectives.
Suddenly, he began to like detective stories.