马宏打电话给迈可警告他，并解释说他不会告密。

Mahone calls Michael to warn him and to explain that he won't squeal.

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通过创建可重用的宏，可以避免重复输入相同的代码段；这不但可以避免重复，而且可以减少代码量，从而提高代码的可读性。

Instead of typing the same piece of code again and again, you can create reusable macros that both avoid this repetition and enhance the look and readability of the code by reducing clutter.

youdao

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.

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