Your vocal tract is a very special kind of sound filter and the reason for that is thanks to resonance.

你的声道是一种非常特殊的声音过滤器，这要归功于共鸣。

The sound of singing and clapping filtered through from the children's book corner, where some kind of mother and baby group was in full swing.

童书角里传来歌声和掌声，某种母婴组合正在如火如荼地进行着。