beat a dead horse
US /biːt ə dɛd hɔrs/
UK /biːt ə dɛd hɔrs/
1.
golpear un caballo muerto, perder el tiempo
to waste effort on something that is no longer possible or cannot be changed
:
•
Trying to convince him now is just beating a dead horse; he's made up his mind.
Intentar convencerlo ahora es solo golpear un caballo muerto; ya ha tomado una decisión.
•
Let's move on to a new topic; we're just beating a dead horse with this argument.
Pasemos a un nuevo tema; solo estamos golpeando un caballo muerto con este argumento.