你可以附上自己的联系信息以便以后保持联系。

You can include contact information so you can stay in touch.

youdao

既然这么多年之后，我们又相见了，咱们以后保持联系吧。

Now that we've met again after all these years, let's keep in touch with each other.

youdao

见到这么多中国孩子喜欢英语，他很高兴。我们相约以后保持联系。

He was glad to see that so many Chinese children like English, and we agreed to keep in touch with each other later on.

youdao