It can be said with certainty that…可以肯定地说……
What calls for special attention is that…需要特别注意的是
It’s generally recognized that…它普遍认为…
But the problem is not so simple. Therefore然而问题并非如此简单，所以……
Nothing is more important than the fact that…没有什么比这更重要的是…
As the proverb says， 正如谚语所说的，
All things considered,总而言之 It may be safely said that…它可以有把握地说……
It has to be noticed that… 它必须注意到，…
Further, we hold opinion that…此外，我们坚持认为，
what’s far more important is that… 更重要的是…
I will conclude by saying…最后我要说…
As is often the case…由于通常情况下…
Similarly, we should pay attention to…同样，我们要注意…
It’s hardly too much to say that… 它几乎没有太多的说…
It’s hardly that… 这是很难的……
From my point of view, it would be better if…在我看来……也许更好
Nothing is more important than the fact that… 没有什么比这更重要的是…
As stated in the previous paragraph如前段所述
It’s generally recognized that… 它普遍认为…
As far as …is concerned 就……而言