1.A case in point is ... 一个典型的例子是...
2.As is often the case...由于通常情况下...
3.As stated in the previous paragraph 如前段所述
4.But the problem is not so simple. Therefore 然而问题并非如此简单，所以
5.But its a pity that... 但遗憾的是
6.For all that...对于这一切...... In spite of the fact that...尽管事实......
7.Further, we hold opinion that... 此外，我们坚持认为，...
8.However , the difficulty lies in...然而，困难在于
9.Similarly, we should pay attention to... 同样，我们要注意...
10.not(that)...but(that)...不是，而是
11.In view of the present station.鉴于目前形势
12.As has been mentioned above...正如上面所提到的
13.In this respect, we may as well (say) 从这个角度上我们可以说
14.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