声音的

• Also it ' s a sign of lack of vocal training
  它也是声音的训练缺乏的一个告示。
• The speed of light travels faster than the speed of sound
  光的速度比声音的速度快
• For more information about system sounds , see
  有关系统声音的更多信息，请参见
• And anybody who heard this hum would just be happy
  听到这声音的人们都会感到高兴。
• Class for representing and playing a system sound
  用于表示和播放系统声音的
• Provides code to play the one of the system sounds
  提供用于播放一个系统声音的代码。
• Damn , i never thought i would enjoy his voice
  该死,我想我永远也不会喜欢听他的声音的
• The jet plane is flying at the velocity of sound
  喷射机以声音的速度飞行。
• Provides code that plays a sound repeatedly
  提供用于重复播放声音的代码。
• Auditory system and human response to sound
  听觉系统和人类对声音的反应。