I googled “professional English” and it doesn’t sound good.
https://blog.lillypad.ai/learn-professional-english/
For example, a business person might say “We’re going to need more information on that, OK?”.
Someone speaking regular English would simply say “We need more information.”
Finally, intonation patterns are also different. In professional English, the pitch goes up at the end of statements to show interest and the pitch goes down at the end of statements to show certainty.
For example, a business person might say “That sounds like an excellent idea.”
Regular English speakers would be more likely to say something like “That’s a good idea.”
40 years ago it was called “Business English”. It was a common series of classes for anyone in a business related major, but I never met anyone who was a Business English major.
I googled “professional English” and it doesn’t sound good.”
So she learned how to talk like Bill Lumbergh.