1
The coffee machine burbled away in the big silent kitchen.
2
The radio burbled away in the background.
3
He was really just burbling away to himself until he was inspired by the product to properly 'go for it'.
4
The tiny voice on the speaker burbled away, forming part of the background noise, until James heard the phrase 'crowded Amphitheater'.
5
"Just your blessing, we put the announcement in the paper yesterday," she said, burbling away like a happy brook.