以下是一些适用于四级作文的万能句子：
1、对于...而言，它具有不可忽视的重要性。
For...，it is of great/significant/considerable importance.
2、在过去的几年里，...已经成为社会话题。
In recent years, ..、has become a hot topic in society.
3、...有多种原因，其中最重要的是...
There are several reasons for ..., of which the most important is...
4、因此，我们必须采取措施来解决这个问题。
Therefore, we must take measures to address this problem.
5、正面的是，...
On the positive side, ...
6、然而，我们不能忽视它的负面影响。
However, we cannot overlook its negative effects.
7、毫无疑问，...在现代社会扮演着重要的角色。
Undoubtedly, ..、plays an important role in modern society.
8、相反，...
On the contrary, ...
9、总的来说，...
In conclusion, ...
10、总的来说，...应该得到更多的关注和重视。
All in all, ..、deserves more attention and concern.
