Maybe it’s been explained, but on Earth, there are many languages/cultural dialects/regional-slang/etc. Those all are absent for the Klingons/Romulans/Ferengi/etc.
Dialects are mentioned in Enterprise. In the first episode Klang’s dialect is the reason Enterprise’s UT can’t lock on and translate. Later It’s mentioned in the Augment arc that Enterprise has been programmed with 7 klingon dialects.
Maybe it’s been explained, but on Earth, there are many languages/cultural dialects/regional-slang/etc. Those all are absent for the Klingons/Romulans/Ferengi/etc.
Dialects are mentioned in Enterprise. In the first episode Klang’s dialect is the reason Enterprise’s UT can’t lock on and translate. Later It’s mentioned in the Augment arc that Enterprise has been programmed with 7 klingon dialects.