I have a thick accent and find some words like "hippopotamus" difficult to pronounce.
What accent or dialect do you use?
My mother tongue is German. Hippopotamus is Nilferd. Sounds funny to you, yes? Like a bad name for nert?
Nilferd?  That's interesting.  What other words are tough to pronounce ?
Ah, let me think...
I read that English allows for different pronunciations and even spellings of the same word.