An extension of this principle is the fact that testing that has been performed on a function that has not changed may still be considered valid.

此原则的一个扩展是这样一个事实，对一个没有变更的功能执行的测试可能仍旧认为是有效的。

youdao

The aggregation extension has changed between BIRT V2.2 and V2.3, however.

但是，从BIRT V2.2到V2.3，聚合扩展已经发生了变化。

youdao

If you changed the page extension to.html or.htm, then it will not render properly.

如果将页面扩展名改为. html或者. htm，就无法正确地呈现。

youdao

As I got nearer and traffic changed, it decided to put me on the Turnpike extension instead.

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