How to say “It's a nice idea, in theory.” in JapaneseIn Japanese理論上(りろんじょう)はいい考(かんが)えです。Rironjō wa ii kangae desu.▶ Hear it in JapaneseIt's a nice idea, in theory. in other languagesWhat It's a nice idea, in theory. meansIn PortugueseIn French