Nimisha forced a smile as she dropped into old Terran language that Cuiva ought not yet understand.
"I'm quite conversant in a variety of Terran languages and dialects."
Linguists studying your language found traces of three Terran languages.
There was no sense in using the Terran language except perhaps as an incantation when one was necessary.
All the races called such things "acronyms" now, since only the Terran languages had a word for them.
The Vulcan's eyes closed, and he wished he were better with the Terran language.
The human used a variant of the old Terran language, German.
It would be hard to translate unless-do you understand the Terran language?
Terran languages are full of words like that.
Kree are also unable to speak terran languages without surgical modification to their throats.