1、It goes without saying that...
2、It is well known that...
3、As far as I am concerned, I believe that...
4、In my opinion, I think that...
5、From my perspective, I would say that...
6、It is undeniable that...
7、Firstly, it is essential to consider...
8、Additionally, it is important to mention...
9、Furthermore, another key point to consider is...
10、On the other hand, some people argue that...
11、Despite this, it is clear that...
12、In conclusion, I would like to emphasize that...
13、To sum up, the benefits of..、outweigh the drawbacks.
14、As a result, it is evident that...
15、In conclusion, it can be said that...
