This task is about translating a given Spanish language sentence to English.

Para visualizarlo, yo imagino -- y tal vez esto esté fundamentado en la realidad -- que estos elementos tienen un tipo de reserva de electrones por si logran ceder algunos de estos electrones de valencia
And the way I think about this, and this is really just a way-- and it maybe it bears out in physical reality-- is that these guys have kind of a deep bench of electrons.

llamado rendimiento al vencimiento.
This is called yield to maturity.

Sé que he hablado efusivamente como una fanática de Dr. Who,

I know I've been gushing in a very Dr Who geeky manner right now about this show.

