But some luxury goods also serve a practical function.

当然，有的奢侈品也有实用功能。

youdao

Your dishwasher, your car, your DVR all serve a practical, well-defined purpose. Today’s humanoids, meanwhile, serve almost no practical function.

我们知道，洗碗机、汽车、录像机等等都用实用而明确的功能定位，相比之下，仿人机器人几乎没有确切的功能定位。

youdao

The AddOne method is not a very practical example because you would normally just receive a regular integer as a parameter and write the method as a function that returns a modified integer.

方法addone并不是一个很实际的示例，因为通常只需接收常规整数作为参数，并且作为能返回修改的整数的函数编写此方法。

youdao

Content is a function -or let me say practical language, the purpose, in other words, of communicating facts or of communicating at all, which we associate with practical language -is a function of poetic language.

他们认为，内容即是功能,实用语言的目的，就是交流，我们总是把交流和实用语言联系,但其实它也是诗歌语言的功能。

耶鲁公开课 - 文学理论导论课程节选