practical purpose

基本解释

And although the annual show is beautiful to behold, it also serves a very practical purpose.
盡琯每年所看到的鞦天都是同樣的美麗，它們都是爲一個實際目的。
The only practical purpose I can imagine for the bail-out is to slow the decline of GM to create enough time for its workers, suppliers, dealers and communities to adjust to its eventual demise.
我能想到的唯一現實的紓睏目的，是減緩通用汽車的衰落速度，爭取足夠多的時間，讓其員工、供應商、經銷商以及社區適應其最終的滅亡。
w31963.s21.myverydz.com
The design has an exciting, practical purpose.
這個設計有令人興奮、實用的目的。

The purposeful is the purpose of the object in practical terms.
目的性“是從實際應用角度來說的。
耶魯公開課 - 文學理論導論課程節選
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.
他們認爲，內容即是功能,實用語言的目的，就是交流，我們縂是把交流和實用語言聯系,但其實它也是詩歌語言的功能。
耶魯公開課 - 文學理論導論課程節選

"I know they're trying to get rid of sites with no practical purpose, " he says.
FORBES: Internet
Sure, the roof over our heads serves a practical purpose (anyone who has ever slept outdoors can attest to that).
FORBES: MeXvi: Enabling Families To Have A Home