vocalization          
noun (UK usually vocalisation) uk/ˌvəʊ.kəl.aɪˈzeɪ.ʃən/ us/ˌvoʊ.kəl.ɪˈzeɪ.ʃən/
 [ C or U ] language specialized发声,发出嗓音 
a sound that is produced with the voice, or the act of producing sounds with the voice
  Chimpanzees produce vocalizations by alternating the sizes and shapes of their mouths. 黑猩猩通过改变嘴的大小和形状来发声。 
  [ U ]用语言表达感受(或想法) 
the act of expressing feelings and ideas in words
  the vocalization of positions and perspectives that differ from the Western position 与西方立场不同的立场和观点的表述