这句英文里面包括的语法,还有为什么and后面要加个逗号?Imagination grows by exercise and ,contrary to common belief ,is more powerful in the mature than in the young.

问题描述:

这句英文里面包括的语法,还有为什么and后面要加个逗号?
Imagination grows by exercise and ,contrary to common belief ,is more powerful in the mature than in the young.