in是介词，后面加动名词，可以是doing。
And why should anyone be interested in listening to our cough?
凭什么会有人感兴趣来听我们的咳嗽呢？
扩展资料
That is how I first came to be interested in the behaviour of prices.
这就是我首次对股票价格的变化产生兴趣的原因。
They were always changing. It was all I had to be interested in the changes.
它们总是在不断的变化着，这种变化才是我真正感兴趣的东西。
