v.  分散；驱散

v. （使）〔某物〕消散

• dispersal   n. 散发，散布；传播；疏散

• crowd dispersal  疏散人群

• the dispersal of seeds  种子的播撒

• These early ancestors of modern Eurasian dispersed into parts of the world that have more seasonal sunshine and much lower levels of sun radiation.

  早期的祖先分散到世界各地

• For most of human history, we all had dark skin, what we see today is the product of evolutionary events resulting from the dispersal of a few human populations out of Africa around 60,000 to 70,000 years ago. 人口散布

• Police used tear gas to disperse the crowd. 警察用催泪瓦斯驱散人群。

• The clouds dispersed as quickly as they had gathered. 云聚集得快，散得也快。

• The seeds are dispersed by the wind.

  这些种子由风传播。

BrE /əˌbriːviˈeɪʃn/