心甘情愿 (xīn gān qíng yuàn): Be delighted to do something [idiom] (verb/idiom) — Meaning & Stroke Order

If it can promote international cooperation, our side is delighted to bear part of the additional costs.

Are you really delighted to devote everything to this uncertain outcome?

He is not delighted to accept the transfer; he simply has no other choice.

Despite the arduous task and meager returns, they are still delighted to devote themselves to it.