roar

cry, shout, exclaim, roar, scream, shriek, yell, call

这些动词的共同含义是“喊”或“叫”。
cry: 一般指因恐惧、痛苦、惊奇等而喊叫。
shout: 指有意识地高声喊叫，常用于提出警告、发命令或唤起注意等。
exclaim: 多指因高兴、愤怒、痛苦、惊讶等突发感情而高声喊叫。
roar: 指发出大而深沉的声音、吼叫或咆哮。
scream: 指因恐具、快乐或痛苦而发出的尖叫声。
shriek: 指因惊恐、痛苦等或其它感情而发出比scream更为尖锐、刺耳的叫声。
yell: 多指求援、鼓励时的呼叫。也可指因外界因素刺激而发出尖厉声音。
call: 指大声说话或喊叫，以引起某人的注意。

名词 roar:

1. a deep prolonged loud noise
   同义词：boom, roaring, thunder
2. a very loud utterance (like the sound of an animal)
   同义词：bellow, bellowing, holla, holler, hollering, hollo, holloa, roaring, yowl
3. the sound made by a lion

动词 roar:

1. make a loud noise, as of wind, water, or vehicles
   同义词：howl
2. utter words loudly and forcefully
   同义词：thunder
3. emit long loud cries
   同义词：howl, ululate, wail, yawl, yaup
4. act or proceed in a riotous, turbulent, or disorderly way-R.A.Billington
5. make a loud noise, as of animal
   同义词：bellow
6. laugh unrestrainedly and heartily
   同义词：howl

1. The roar of the train reverberated in the tunnel.
   火车的轰隆声在隧道里回荡。
2. They drove away from the city centre, the roar of the traffic still dinning in their ears.
   他们驶出了市中心，但车来人往的喧嚣声仍在耳中回响。
3. The murmur swelled into a roar.
   窃窃私语的声音变大形成一片喧哗。
4. The football crowd roared.
   足球观众大喊起来。
5. His amusing performance caused a roar of laughter in the audience.
   他那有趣的表演引起了观众的哄堂大笑。
6. He roared with pain.
   他疼得大叫起来。