最后短语用高级英文怎么说

"In conclusion" 或 "To conclude" 都是常用的结束短语，表示讲话或文章的结尾。这两个短语都来自拉丁语，"in conclusion" 的意思是 "最后"，"to conclude" 的意思是 "结束"。

例句：

In conclusion, I would pke to thank everyone for their attention and support. 最后，我想感谢大家的关注和支持。
To conclude, we can see that there are many benefits to using renewable energy sources. 结束时，我们可以看出使用可再生能源有很多好处。