small echo

例句：

1. 1. The small echo of the waterfall was soothing to the ears.
   瀑布的微弱回声对耳朵来说很舒缓。
2. 2. The whisper of the wind through the trees created a small echo in the clearing.
   风吹过树林时，在空地上产生了微弱的回声。
3. 3.The echo of her laughter could be heard for miles around.
   她笑声的回响可以传遍好几英里。