To support closures fully, a language needs to provide support for manipulating, invoking, and creating functions at run time and for functions to capture the environment in which they were created.
要完全支持闭包，这种语言必须支持在运行时操纵、调用和创建函数，还要支持函数可以捕获创建这些函数的环境。
You should be able to develop Web applications in any language and environment you chose and support the ready exchange of information between different components, irrespective of their source.
您应该能够在所选的任何语言和环境中开发Web应用程序，并支持不同组件之间的信息就绪交换，并且与信息来源无关。
Mathematica is a computing environment providing support for numerous numeric and symbolic computations through a dedicated symbolic language.
Mathematica是一个计算环境，通过专用的符号语言为众多数值和符号计算提供支持。
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