hum
🇺🇸
/hʌm/
🇬🇧
/hʌm/
to make a tune with closed lips
She likes to hum while she works.
她工作时喜欢哼歌。
to make a low, steady sound
The machine makes a soft hum when it's on.
机器开启时会发出柔和的嗡嗡声。
to be busy and active
The city streets hum with people in the morning.
早晨的城市街道因人群而熙熙攘攘。
a low, steady sound
I heard a quiet hum coming from the kitchen.
我听到厨房传来一阵轻微的嗡嗡声。