https://twitter.github.io/scala_school/zh_cn/collections.html
https://twitter.github.io/projects.html
https://docs.scala-lang.org/zh-cn/overviews/parallel-collections/overview.html
https://twitter.github.io/scala_school/zh_cn/collections.html
https://twitter.github.io/projects.html
https://docs.scala-lang.org/zh-cn/overviews/parallel-collections/overview.html