it's obvious
A eso no le contestaré que es obvio, porque no lo es.
I won't answer that by saying it's obvious, because it isn't.
— El hoyo (2019)
Es obvio por qué tienes un dolor de estómago.
It's obvious why you have a stomach ache.
Eso es obvio, no tienes que explicarlo.
That's obvious; you don't have to explain it.