hum

verb

1. 哼（曲子）
   to sing a tune with your lips closed
   1. She was humming softly to herself.
      她在轻声哼着曲子。
   2. What's that tune you're humming?
      你哼的是什么曲子？
2. 发嗡嗡声
   to make a low continuous sound
   1. The computers were humming away.
      计算机在嗡嗡作响。
3. 活跃；繁忙
   to be full of activity
   1. The streets were beginning to hum with life.
      街道开始热闹起来。

noun

1. 嗡嗡声；嘈杂声
   a low continuous sound
   1. the hum of bees/traffic/voices
      蜜蜂的嗡嗡声；车辆的呜呜声；人的嘈杂声
   2. The room filled with the hum of conversation.
      房间里充满了嘈杂的谈话声。

1. VERB 发出连续而低沉的声音;发嗡嗡声
   If something hums, it makes a low continuous noise.
   1. The birds sang, the bees hummed...
      鸟儿叫，蜂儿鸣。
   2. Within five hours, the equipment will be humming away again...
      用不了5小时，设备就又能嗡嗡地运转了。
   3. There was a low humming sound in the sky.
      空中传来一阵低沉的嗡嗡声。
   4. Hum is also a noun.
      
   5. ...the hum of traffic...
      嘈杂的车流声
   6. There was a general hum of conversation around them.
      他们周围的人都在嗡嗡地低声交谈。
2. VERB 哼（曲子）
   When you hum a tune, you sing it with your lips closed.
   1. She was humming a merry little tune...
      她哼着一支欢快的小曲儿。
   2. He hummed to himself as he opened the trunk.
      他独自哼着曲子打开了车子的后备箱。
3. VERB (地方）热闹，活跃，繁忙
   If you say that a place hums, you mean that it is full of activity.
   1. The place is really beginning to hum...
      这个地方真正开始热闹起来了。
   2. On Saturday morning, the town hums with activity and life.
      周六早晨，小镇一派热闹繁忙，活力盎然。
4. CONVENTION （踌躇时发出的声音）嗯，呃
   Hum is sometimes used to represent the sound people make when they are not sure what to say.
   1. Hum, I am sorry but I thought you were French.
      嗯，很抱歉，我以为你是法国人。
5. See also: ho hum

1. In the background was that eternal hum.
   背景音是没完没了的嗡嗡声。
2. Ho hum, another nice job down the drain.
   ，又一份好工作泡汤了。
3. The birds sang, the bees hummed
   鸟儿叫，蜂儿鸣。
4. There was a low humming sound in the sky.
   空中传来一阵低沉的嗡嗡声。
5. She was humming a merry little tune
   她哼着一支欢快的小曲儿。
6. He hummed to himself as he opened the trunk.
   他独自哼着曲子打开了车子的后备箱。
7. The place is really beginning to hum
   这个地方真正开始热闹起来了。
8. On Saturday morning, the town hums with activity and life.
   周六早晨，小镇一派热闹繁忙，活力盎然。
9. Hum, I am sorry but I thought you were French.
   嗯，很抱歉，我以为你是法国人。
10. Before he knew it, the heat and hum of the forest had lulled him to sleep.
    森林里的热气和嗡嗡的声音让他不知不觉便睡着了。
11. Bees hum.
    蜜蜂嗡嗡叫。
12. The hum of study ceased.
    嗡嗡的读书声停止了。
13. Hum, that's all? Shall we begin?
    哼，说完了吗？能开始打了吗？
14. I can hum them all, he laughs.
    我能哼唱所有的歌曲，班迪尔笑着说。
15. I mean you know, Hum, today was my first, my third final.
    我的意思是，你知道，今天是我参加决赛的第三场。
16. I don't know the words of the song but I can hum it to you.
    我不知道这首歌的歌词，但我可以哼给你听。
17. The room filled with the hum of conversation.
    房间里充满了嘈杂的谈话声。
18. When she was a small girl, she could hum songs and correct the tone.
    当她还是和小女孩的时候，她就能哼歌和教音了。
19. This ham is beginning to hum.
    这只火腿开始有难闻的味了。
20. Hum! Just like you to make a promise and then forget it.
    哼！你就是这种人，答应了，然后又忘了。
21. Hum, hum, hum! Here I come, Down the road and round the hill.
    嗡，嗡，嗡！我来了，开下了道路，围着小山跑。
22. For song of bird and hum of bee;
    为蜜蜂的嗡叫和群鸟的歌唱；
23. I began to hum a bit and feel happy.
    我开始哼小曲，觉得很愉快。
24. I do not have pets, and hum!
    我没有宠物了，呜呜！
25. You don't need to sing loud, you just hum softly.
    你不必大声唱，只要轻轻哼就好了。
26. I'll hum it for you.
    我哼了一声就出去了。
27. You hum the tune while I sing.
    我唱的时候你们哼唱。
28. I've forgotten how that tune goes could you hum it for me?
    我忘了那调子了&你能给我哼一遍吗？
29. I always want to hum this tune.
    我就特别想哼这曲子。

v.

hum and haw

• 犹豫不决；支支吾吾；嗯嗯呃呃
  to take a long time to make a decision or before you say sth

noun

1. a humming noise
   1. the hum of distant traffic

   Synonym:    humming

2. the state of being or appearing to be actively engaged in an activity
   1. they manifested all the busyness of a pack of beavers
   2. there is a constant hum of military preparation

   Synonym:    busyness

verb

1. sing with closed lips
   1. She hummed a melody

2. make a low continuous sound
   1. The refrigerator is humming

3. sound with a monotonous hum

   Synonym:    thrum

4. be noisy with activity
   1. This office is buzzing with activity

   Synonym:    buzzseethe