419. From what has been discussed above, we may safely draw a conclusion that part-time jobs can produce a far-reaching impact on students and they should be encouraged to take part-time jobs.

译文　通过以上探讨，我们不难得出结论：做兼职会对学生们产生深远的影响，我们应该鼓励学生从事兼职工作。

点睛　这是一个典型的因果型文章的结论段，正文部分就某一观点的正确性或可行性进行分析，结论部分再次重申观点或提出建议。类似结构的模板如下：

From what has been discussed above, we may reasonably/safely come to/reach/draw the conclusion that__________（主题）。

句型拓展

In conclusion, I can confidently say that the bathroom is the most important room in the house. 总而言之，我可以肯定地说，卫生间是一所住宅中最重要的房间。

All things considered, I would prefer to live in a modern apartment. 综上所述，我更愿意住现代公寓。

From what has been discussed above, I am fully convinced that the leisure life-style is undergoing a decline with the progress of modern society, and it is not necessary a bad thing. 通过以上讨论，我完全相信，随着现代社会的进步，悠闲的生活方式正在消失，而这并不一定是件坏事。

From what has been discussed above, we may reasonably come to a conclusion that, although the parents' desire to look after children by themselves is understandable, its disadvantages far outweigh the advantages. 通过以上讨论，我们可以得出如下结论：尽管家长想亲自照看孩子的愿望是可以理解的，但是这样做的缺点远大于优点。