User talk:Zhtb

March 2020
Hello, I'm CLCStudent. I wanted to let you know that one or more of your recent contributions to Immune system 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. CLCStudent (talk) 15:57, 16 March 2020 (UTC)

Please refrain from making unconstructive edits to Wikipedia, as you did at Immune system. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. CLCStudent (talk) 15:58, 16 March 2020 (UTC)