As far as …is concerned

就……而说

It goes without saying that

……是不言而喻的

It can be said with certainty that…

我们可以肯定地说……

As the proverb says

正如谚语所说

It has to be noticed that…

我们必须注意到…

It‘s generally recognized that…

普遍认为…

It‘s likely that …

这可能是因为…