It's generally recognized that… 它普遍认为…
It's likely that … 这可能是因为…
It's hardly that… 这是很难的……
It's hardly too much to say that… 它几乎没有太多的说…
What calls for special attention is that…需要特别注意的是
There's no denying the fact that…毫无疑问，无可否认
Nothing is more important than the fact that… 没有什么比这更重要的是…
what's far more important is that… 更重要的是…
A case in point is … 一个典型的例子是…
As is often the case…由于通常情况下…
As stated in the previous paragraph. 如前段所述
But the problem is not so simple.Therefore 然而问题并非如此简单，所以……
But it's a pity that… 但遗憾的是…
For all that…对于这一切…… In spite of the fact that…尽管事实……
Further, we hold opinion that… 此外，我们坚持认为，…
However , the difficulty lies in…然而，困难在于…
Similarly, we should pay attention to… 同样，我们要注意…
not(that)…but(that)…不是，而是
In view of the present station.鉴于目前形势
As has been mentioned above…正如上面所提到的…
In this respect, we may as well (say) 从这个角度上我们可以说
However, we have to look at the other side of the coin, that is… 然而我们还得看到事物的另一方面，即 …
There are different opinions among people as to……，Some people suggest that .关于……人们有不同的观点。
Eating too much causes/results in/leads to overweight. 吃太多导致超重。
There is no doubt that enough concern must be paid to the problem of … 毫无疑问,对……问题应予以足够的重视……