すばらしいアイデアがうかんだよ。

すばらしいアイデアがうかんだよ。

I've got a splendid idea.

すばらしいアイデアがうかんだよ。

Subarashii aidea ga ukanda yo.

素晴らしい (すばらしい、すんばらしい)

wonderful; splendid; magnificent

アイデア (アイデア、アイディア、アィディア)

idea

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

浮かぶ (うかぶ)

to float; to be suspended; to rise to surface; to come to mind; to have inspiration

よ (よ)

indicates certainty, emphasis, contempt, request, etc.; used when calling out to someone; used to catch one's breath or get someone's attention; yo!