I am not very sure but I would probably use on the other hand or therefore.
Answer:
i think it's true, because of the fact that reading aloud depends on your voice and whether or not your voice can keep up with your reading speed, it also depends on if somebody else is reading with you, because you'd need to make your voice compatible with theirs
The diver strapped the aqualung to his back in preparation to dive
I believe that it means we never know our full potential, and that we never know how great we are till we are asked to show it.
