From what has been discussed above, we may safely draw the conclusion that… 通过上面的讨论，我们可以得出结论

Taking into account all the factors, we may safely come to the conclusion that… 考虑到所有的因素，我们可以得出结论

Judging from all the evidence offered, we may safely arrive at/reach the conclusion that… 从所提供的所有证据来看，我们可以得出结论

All the evidence supports a sound conclusion that… 所有的证据都支持可靠的结论

From what is mentioned above, we may come to the conclusion that… 从上面提到的，我们可以得出这样的结论

To sum up/draw a conclusion, we find that… 为了总结/得出结论，我们发现

In short/brief/a word/conclusion/sum/, it is… 简而言之/总之，这是

Therefore/Thus/Then, it can be inferred/concluded/deduced 因此，可以推断出

From/Through/According to what has been discussed above, we can come to/reach/arrive at/draw the conclusion that…. 从/通过/根据上面的讨论，我们可以得出结论……

It is believed that… 被认为