I prefer doing more exercise to spending money.to后面的动词怎么加了ing?

I prefer doing more exercise to spending money.to后面的动词怎么加了ing?
I prefer doing more exercise to spending money.to后面的动词怎么加了ing?

I prefer doing more exercise to spending money.to后面的动词怎么加了ing?
比起花钱来说,我更喜欢做更多的运动（锻炼）.
prefer A to B,比起B来更喜欢A
这个固定用法中,to是介词,后面必须跟名词性的词语.

这个是动名词，起的是名词的作用。

我宁可多做运动也不多花钱!
prefer doing sth to doing sth