Hi, I would like to pose this question,that I came across the book "American accent training" from Ann Cook : "In many dictionaries, you may find a character that looks like an upside down V, [A] and another character that is an upside-down e [ə], the schwa. There is a linguistic distinction between the two, but they are pronounced exactly the same. Since you can't hear the difference between these two sounds, we'll just be using the upside-down e to indicate the schwa sound. It is pronounced uh" so, please, anyone could enlight me about what is this excerpt about?, I mean, the upside down V, [A] and upside-down e [ə], the schwa, in this context ? I'm really struggling to improve my pronuntiation and understanding og english and I will appreciate any help! regards and thank you!