noise和sound可数吗

　　Sound travels better in water than in air.

　　声音在水中比在空气中传播得快。

　　She looked round at the sound of his voice.

　　听到他的声音，她扭头看了看。

　　This gives the design team a sound basis for their work.

　　这为设计组开展工作提供了坚实的基础。

　　The noise came at us from all sides.

　　噪音从四面八方向我们袭来。

　　We're used to the noise from the traffic now.

　　现在我们已经适应车辆往来的噪音了。

　　There is some noise in the data which needs to be reduced.

　　资料里有一些需要删除的不适用信息。