1.As stated in the previous paragraph 如前段所述
2.But the problem is not so simpleTherefore 然而问题并非如此简单，所以……
3.But it's a pity that… 但遗憾的是…
4.For all that…对于这一切…… In spite of the fact that…尽管事实……
5.Further, we hold opinion that… 此外，我们坚持认为，…
6.However , the difficulty lies in…然而，困难在于…
7.Similarly, we should pay attention to… 同样，我们要注意…
8.not(that)…but(that)…不是，而是
9.In view of the present station鉴于目前形势
10.As has been mentioned above…正如上面所提到的…
