1.As far as …is concerned 就……而言

2.It goes without saying that… 不言而喻，…

3.It can be said with certainty that… 可以肯定地说……

4.As the proverb says， 正如谚语所说的，

5.It has to be noticed that… 它必须注意到，…

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 it's a pity that… 但遗憾的是…

1.I will conclude by saying… 最后我要说…

2.Therefore, we have the reason to believe that…因此，我们有理由相信…

3.All things considered,总而言之 It may be safely said that…它可以有把握地说……

4.Therefore, in my opinion, it's more advisable…因此，在我看来，更可取的是…

5.From what has been discussed above, we may safely draw the conclusion that…通过以上讨论，我们可以得出结论…