噪音已经伤害了一千万美国人的听力。他们许多是婴儿潮中出生的人经常听摇滚而且总是把声音开得很大。
Noise has damaged the hearing of about 10 million Americans, many of them Baby Boomers who listened to hard rock with the volume turned up as far as possible.
因此，对于在机场想听到飞机起飞与降落的旅客们来说，声音可能很大，但却没有多少噪声(也就是说，这些噪声对他们来说并不造成什么干扰)。
Thus, for passengers at an airport who expect to hear airplanes taking off and landing, there may be a lot of sound, but not much noise (that is, they are not bothered by the noise).
当老鼠偷吃稻子的时候，他们发出很大的声音，小鸡听到了。
All of the rats make a lot of noise when they eat. The chicks hear that.
因此，农村老鼠就去了城市老鼠的家。房子很好，食物也确实很可口。但是正在吃饭的时候，他们听见很大的声音。城市老鼠叫道：“快跑！”
So the country mouse goes to the house of the city mouse. It is a very good house. The food is really nice, too. But when they are eating, they hear a great noise. They city mouse cries, "Run!"
猫鼬很大程度上依赖于声音沟通，来协调活动和跟踪他们生存环境的变化。
Meerkats rely heavily on vocal communication to co-ordinate activities and keep track of any changes in their environment.
猫鼬很大程度上依赖于声音沟通，来协调活动和跟踪他们生存环境的变化。
Meerkats rely heavily on vocal communication to co-ordinate activities and keep track of any changes in their environment.
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