问题描述：
It is better to spend money on preventing illnesses by promoting healthy living rather than spending it trying to make people better after they are ill.
为什么rather than 后面要用动词的ing形式spending?它前面不是to do么?
为什么rather than 后面要用动词的ing形式spending?它前面不是to do么?
问题解答：
我来补答展开全文阅读