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humming
n
hum
v
例子
The soft humming of the computer servers indicated their smooth operation in the data center.
In the attic, the old fan produced a nostalgic humming sound as it circulated the air.
In the garden, the humming of bees added to the peaceful ambiance on a sunny afternoon.
During the summer night, the distant humming of cicadas created a soothing backdrop to the starry sky.
Her constant humming became an irritation to everyone in the office.
