interested to do 對(duì)做某事感興趣，想了解某事。
interested in doing 對(duì)某種想法感興趣，doing 通常為想法。
I shall be interested to know what happens.
我很想知道發(fā)生了什么事。 (想了解)
I'm interested in working in Switzerland. Do you have any idea about that?
我對(duì)在瑞士工作感興趣。你想過這事嗎? (一種想法)
