English主要词典
billow
Universal Words
verb, noun
verb [V]
1 (of a sail, skirt, etc.) to fill with air and swell out:
The curtains billowed gently in the breeze.
2 if smoke, cloud, etc. billows, it rises and moves in a large mass:
A great cloud of smoke billowed out of the chimney.
noun [usuallypl.] a moving mass or cloud of smoke, steam, etc. like a wave:
A farmer was burning straw, the yellow billows of smoke spiralling lazily upward.
