Let me make just a few concluding remarks.

我来讲几句话作为结束语。

Fifth chapter: Concluding remarks.

第五章，结束语。

Let me make some concluding remarks.

我来说几句话，作为结束语。

Finally, there is concluding remarks.

最后是结束语。

The seventh part is the concluding remarks.

第七部分为结束语。