The defmulti macro specifies the dispatch function to use when first invoked and a few other optional features.

defmulti宏指定在初次调用时要使用的分派函数，另外还有其他一些可选特性。

youdao

This will take you most of the way toward writing an sxml2xml utility — one that oddly is not distributed as part of SSAX, not even as a direct function or macro.

这很可能会促使您编写一个sxml2xml工具——奇怪的是SSAX没有包含这样的工具，甚至也没有这样的直接的函数或者宏。

youdao

Otherwise, if the expression is not a constant, another macro function is called to round up the value to a power of two.

如果表达式不是常量，就调用另一个宏函数把值向上取整到2的幂。

youdao

The inspector general would function on a macro level weighing in on policy, while the court monitor would enforce nuts-and-bolts changes related to the stop-and-frisk policy.

WSJ: NYPD street stop policy's critics seek big changes