User talk:Zilongliu-geo

Welcome!
Hi Zilongliu-geo! I noticed your contributions to Region connection calculus&#32;and wanted to welcome you to the Wikipedia community. I hope you like it here and decide to stay.

As you get started, you may find this short tutorial helpful:

Alternatively, the contributing to Wikipedia page covers the same topics.

If you have any questions, we have a friendly space where experienced editors can help you here:

If you are not sure where to help out, you can find a task here:

Happy editing! Jprg1966 (talk)  20:28, 6 October 2023 (UTC)