It could take 100 years before we can see effects,and even more before we need to launch massive construction projects.中

问题描述:

It could take 100 years before we can see effects,and even more before we need to launch massive construction projects.中的even more before

even more是更多的(时间),before连后面,在我们发起大规模建设之前,并不是把even more before放在一起懂了!