to suddenly start talking about something unrelated
empezar a hablar de algo no relacionado de repente (empezar a hablar de algo no relacionado de repente)
"He tends to go off on a tangent when discussing politics."
"Él tiende a salirse del tema cuando discute sobre política." (El tiende a salirse del tema cuando discute sobre política.)
to start something from the very beginning
to formally present a proposal for discussion
someone who is very careful about spending money
to fail spectacularly
to think or speak about something repeatedly
To begin to succeed rapidly; to leave the ground.