A joint use of both features facilitates the definition of new statements without extending the syntax and without using macro-like meta-programming facilities.
两者结合使用可方便地定义新语句，无需扩展语法，也无需使用类似宏的元编程工具。
A joint use of both features facilitates the definition of new statements without extending the syntax and without using macro-like meta-programming facilities.
两者结合使用可方便地定义新语句，无需扩展语法，也无需使用类似宏的元编程工具。
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