8.9 be interested doing/to do

interested to do　　 对做某事感兴趣，想了解某事。

interested in doing　 对某种想法感兴趣，doing 通常为想法。

I shall be interested to know what happens.

我很想知道发生了什么事。 (想了解)

I'm interested in working in Switzerland. Do you have any idea about that?

我对在瑞士工作感兴趣。你想过这事吗?　 (一种想法)

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