Re: 7X07 The Rings of Akhenaten (Grading/Discussion) (SPOILERS!)
With so many languages being spoken, maybe the Tardis needed to prioritizing which aliens needed to be translate in order to conserve resources or processing power?
"The way I see it, every life is a pile of good things and bad things. The good things don't always soften the bad things. But vice versa, the bad things don't necessarily spoil the good things or make them unimportant."