请英文好的朋友帮助翻译一下以下的句子。

建造大坝和运河是另一个解决水缺乏行之有效的解决方法，
但在建造期间，存在着很多不确定的因素。

It's really an effective solution to build the dam and canal for solving the shortage of water resource, but subsequently, we have to face many risky factors during the construction.

The construction of the dam and canal is another solution of water lack of effective solutions, but in the construction period, there exist many uncertain factors.

Another effective solution of water lack is building dams and canals，But during the construction period there are a lot of uncertain factors .

Another effective way to solve water shortage is to build dim and canal. During contruction, there may be many unpredictable factors.