sounds是什么意思

　　例句：

　　1、Sound travels better in water than in air.

　　声音在水中比在空气中传播得快。

　　2、She looked round at the sound of his voice.

　　听到他的'声音，她扭头看了看。

　　3、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。

　　4、The first year provides students with a sound theoretical basis for later study.

　　第一年为学生以后的学习奠定坚实的理论基础。

　　5、They had a wonderful time by the sound of it.

　　听起来他们好像过得很愉快。