Dispersion is, in ordinary use, another word for dispersal: things spreading over a wide area or moving apart in different directions. Learners can treat the two as close cousins.

Dispersion is, in ordinary use, another word for dispersal在日常用法裡，Dispersion是dispersal的另一種說法：things spreading over a wide area東西散布到很大的範圍，or moving apart in different directions或朝不同方向散開。Learners can treat the two as close cousins學習者可以把這兩個字當成近親來看。

Though actually, dispersion sounds more like the lab and the textbook.

Though actually不過其實，dispersion sounds more like the lab and the textbookdispersion聽起來比較像實驗室和教科書的用語。

You meet it in physics, when light splits and spreads; in statistics, when numbers are spread out rather than bunched together; and in chemistry, when tiny bits of one thing are spread through another.

You meet it你會碰到它in physics, when light splits and spreads在物理課，當光分散開來的時候；in statistics, when numbers are spread out rather than bunched together在統計裡，當數字是分散而不是聚在一起的時候；and in chemistry, when tiny bits of one thing are spread through another還有在化學裡，當一種東西的微小顆粒分散在另一種東西裡的時候。

Dispersal is the more everyday process word — crowds, seeds, people going home. Dispersion is the scientific cousin. In ordinary talk, many people never use either; they just say spread.

Dispersal is the more everyday process wordDispersal是比較日常的說法——crowds, seeds, people going home像是人群散去、種子散播、大家各自回家。Dispersion is the scientific cousinDispersion是它比較科學的親戚。In ordinary talk平常講話，many people never use either很多人這兩個字都不用；they just say spread就直接說spread。