User talk:Mdc2017

November 2018
Hello, I'm Longhair. I wanted to let you know that one or more of your recent contributions to Beijing Jiaotong University have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help Desk. Thanks. Longhair\talk 02:01, 28 November 2018 (UTC)