One couldn't be a cop in Los Angeles, these days, without being reasonably fluent in Spanish.
I am reasonably fluent.
Luckily I turned out to be reasonably fluent and uninhibited when expressing my own thoughts and feelings.
He became reasonably fluent in German while serving in the country.
Hotel clerks tend to be reasonably fluent in English.
"The Lonely Crowd" is not a slog, exactly - Riesman is a reasonably fluent writer, especially by academic standards.
But he'd have had to be reasonably fluent to get hired by a decent hotel for a position that put him in contact with the public.
When he speaks, his voice is as strong as his build is slight; his reasonably fluent English is lightly barbecued with a Texas drawl.
Fifteen hours instruction was considered sufficient for an initiate to become reasonably fluent.
He spoke through Tamirov; his reasonably fluent Tilaran was not, he felt, up to precise technical description.