We can reduce the problem to two main issues.
我们可以将这个问题概括成两个要点。
There is some noise in the data which needs to be reduced.
资料里有一些需要删除的'不适用信息。
We'll need to reduce the weight by half.
我们得把重量减轻一半。
If these measures also reduce unemployment, that is all to the good.
要是这些措施也能降低失业率，那就不失为好事。
These measures would make a valuable contribution towards reducing industrial accidents.
这些措施将会对减少工业事故起重要的作用。