noise barrier

例句：

1. 1. The city has installed a noise barrier to reduce traffic noise.
   该城市安装了噪声屏障以减少交通噪音。
2. 2.The construction of the sound barrier was a major project for the city.
   建造声屏障是该市的一项主要项目。
3. 3. The noise barrier effectively blocks out the sounds from outside.
   噪声屏障有效地阻挡了外界的声音。