whir
US /wɝː/
UK /wɜːr/
動詞
呼呼
(especially of machines) to make a low, soft, continuous sound:
範例:
•
I could hear the washing machine whirring in the kitchen.
名詞
呼呼
the sound or act of a machine making a low, soft, continuous sound:
範例:
•
the whir of machinery