without stopping
Ha llovido sin cesar el día entero.
It has rained non-stop all day.
Es alguien a quien se le preguntan miles de cosas sin cesar.
He is someone who is constantly asked thousands of questions.
— La Nuit américaine (1973)
Sufro sin cesar.
I suffer constantly.
No es buen modelo, su expresión cambia sin cesar.
He's not a good model; his expression keeps changing.
— Rebeca (1940)
Le hablan sin cesar de Manchuria.
They keep talking to him about Manchuria.
— El último emperador (1987)