These experiments serve no useful purpose.

这些实验没有任何实际意义。

《牛津词典》

Society would benefit from the ban on all forms of advertising because it may serve no useful purpose, and can even be damaging.

社会将受益于所有形式的广告禁令，因为它(广告)可能没有有用的目的，甚至可能具有破坏性。

youdao

Some people believe that ads should be banned since they serve no useful purpose and can even be damaging. To what extent do you agree or disagree?

有人认为广告应该被废除，因为广告没有用，是有害的，是否同意这个观点？

youdao

"Raising interest rates further would serve no useful purpose, " said Peter Morici, a business professor at the University of Maryland.

FORBES: Fed Holds Steady

Lawyers for the Bergers and Wilsons argue that media ride-alongs serve no useful law-enforcement purpose.

ECONOMIST: Law and the media