1、Firstly, it should be noted that...
(首先应注意到)
2、In addition, it is worth mentioning that...
(此外值得一提的是)
3、Moreover, it is widely believed that...
(此外,广泛认为)
4、Furthermore, there is a growing concern that...
(此外,越来越担心)
5、On the one hand, it can be argued that...
(一方面,可以说)
6、On the other hand, there is also evidence to suggest that...
(另一方面,也有证据表明)
7、In conclusion, it seems clear that...
(总之,似乎很清楚)
8、To sum up, I would like to emphasize that...
(总结一下,我想强调的是)