As of this week, sometimes.
Up until then, not really, no; they'd simply elide one letter or the
other; {dirba} -> "DIH-ba", "fart" -> "faht", "aunt" -> "aht".
There are a lot more English words where that works without
confusion, and a *LOT* more English words that simply don't have any
significant consonant clusters. They've been saying "banana" (or at
least "nana") for ages, for example.
This was my point: given the choice between a language with lots of
words they can see, and one with lots they can't, they pick the
former.
-Robin