There's a wonderful (and I hope apocryphal, for Ms. Harlow's sake) story about Jean Harlow meeting an English aristocrat named Lady Margot something-or-other. "Margot" is of course pronounced "Margo", but Ms. Harlow didn't know that, and she pronounced the 'T'. Lady what's-her-name graciously replied, "The 'T' is silent, as in 'Harlow' ". Just let that sink in for a while.