Also, only sound can produce echo in the valley.

回声也是这样，必须有声音，山谷才会回响。

youdao

I I wish this stream music, will echo in the deep valley of you.

愿我这小溪的乐音，永远在您深邃的山谷中回响。

youdao

I I wish this stream music, will echo in the deep valley of you.

愿我这小溪的乐音，永远在您深邃的山谷中回响。

youdao