vi.

1. （蜜蜂等）發嗡嗡聲
   The refrigerator motor hummed.

   冰箱的馬達嗡嗡地響著。

2. 發哼哼聲
3. 哼曲子
   He hummed as he walked.

   他一邊走一邊哼著歌。

4. 忙碌，活躍[（+with）]
   The office is humming with activity.

   辦公室裡一片忙碌。

vt.

1. 哼（曲子）
   She was humming a tune to herself.

   她自個兒哼著小調。

2. 用哼聲表示

n.[U]

1. 嗡嗡聲
   He could hear the hum of the bees in the garden.

   他聽得見花園裡蜜蜂的嗡嗡聲。

2. 哼哼聲
3. 哼曲子的聲音

int.

1. （表示猶豫，不滿等）嗯，哼，哦

v.

1. make a low, steady continuous sound like that of a bee.
   ▸sing with closed lips.
2. informal be in a state of great activity.
3. Brit. informal smell unpleasant.

n.

exclam.