And so you get to build your own special purpose programming language that helped you solve your problems in biology or finance or whatever.

你读过的类型都可以，所以你就可以让编程语言按照你的，特殊用途去解决你的生物学，财务或者任何类型的问题。

youdao

Expect is a specific, high-level, and general-purpose programming language, with syntax identical to that of Tcl, augmented by a few special-purpose commands Tcl lacks.

Expect是一种特定的、高级的和通用的编程语言，其语法与Tcl相同，并增加了Tcl中所没有的一些特殊用途的命令。

youdao