Russe ⇄ Anglais Italien +

доволен как слон contraintes
génér.	happy as a pig in shit (Evgeny Shamlidi)
idiom.	happy as a clam (Yeldar Azanbayev)
inform.	tickled pink (ART Vancouver)
довольный как слон
génér.	thrilled to bits (Anglophile); as pleased as a dog with two tails (Anglophile); pleased as a dog with two tails (Anglophile)
сленг довольный, как слон
génér.	as happy as a lark