成音频率

例句：

1. 1. The scientist measured the sound frequency of the bird.
   科学家测量了这只鸟的声音频率。
2. 2. The music has a unique frequency that is hard to replicate.
   这首歌有一个独特的频率，很难复制。
3. 3. The frequency of light waves is directly related to its wavelength.
   光波的频率直接与波长相关。