The sound waves collected from a larger area resonate inside it and we hear a greater amount than usual of the ambient sound around us, though in a jumbled up form.

• 从周围大范围空气中收集来的声波会在贝壳里面产生共鸣，这样我们就能听到更多环绕在我们四周的杂音，不过听起来杂乱不堪。