Intergalactic travel remains just a nice idea.

银河间的旅行仍然只是个美好的愿望。

《柯林斯英汉双解大词典》

Oh, that's a nice idea.

噢，真是个好主意。

youdao

It's a nice idea!

这真是个好点子！

youdao

Charging stations are a nice idea, but realistically they have a ways to go.

FORBES: Electric Cars Will Change the World

Judging from those blowing on their hands, gloves might've been a nice idea as temperatures dropped into the 50s.

NPR: DERBY LIVE: Orb Wins After Surging Among Bettors

The cloning element is there purely for the purposes of creating tissues genetically identical to the patient that won't be rejected, and that's a nice idea.

CNN: Human stem cell cloning: 'Holy Grail' or techno-fantasy?