There are many amazing sounds in our world. There are man-made (人造的) sounds. like the sound of a bus. And there are natural sounds, like the sounds of the rain and animals.
There are quiet sounds, like the sound of a whisper (耳语) And there are loud sounds, like the sound of a plane.
Some sounds are relaxing, like the sound of beautiful music. But some sounds are bad for your cars. When you listen to music, if the volume (音量) of the sound is too loud, it can damage your cars. Traffic noises. or someone yelling into your car can hurt your cars badly. So. please be careful.