indirection

基本解释

It introduces a level of indirection when accessing an object.
当访问对象时，它引入了一个间接的层。
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But when you don't need it, you should keep your design simple and not add unnecessary levels of indirection.
但是当你不需要它时，你应该使你的设计简单并且不要增加没有必要的间接等级。
So here is an example: you have just added the Strategy pattern, and you have more flexibility. But the tradeoff is that you now have more objects and an additional level of indirection.
这就有一个例子，当你只是添加了策略模式时，你在得到了更多的灵活性的同时你也会拥有更多的对象和一个额外的间接层次。

It demands habits of inward attention, and it often proceeds by indirection and obliquity.
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More impressive still, A.L. Kennedy has a keen feel for the jousting indirection of male banter.
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