dis·pers·al /dɪˈspɝsəl/
  散布,傳播,分散
  dis·pers·al /dɪsˈpɝsəl/ 名詞
  散布,分散,消散
  Dis·per·sal n. The act or result of dispersing or scattering; dispersion.
  ◄ ►
  dispersal
       n : the act of dispersing or diffusing something; "the
           dispersion of the troops"; "the diffusion of knowledge"
           [syn: dispersion, dissemination, diffusion]