Going to the clinic is less expensive than going to the hospital.这句话than后面的部分可以怎么省略?可以省略going吗?还是可以直接than hospital?

问题描述:

Going to the clinic is less expensive than going to the hospital.
这句话than后面的部分可以怎么省略?可以省略going吗?还是可以直接than hospital?

可以省略going to ,保留the hospital