If you see a page titled "Edit Conflict", don't panic. There will be two text boxes. Your edits are in the lower box. Select (highlight) them (all of your changes) with the mouse, and copy them (press Ctrl-c on the keyboard or click Edit->Copy). Next, click the Refresh button on the web browser to reload the "Edit Conflict" page. Once it is loaded, quickly find a spot in the upper box where you want to paste your edit, and paste them (press Ctrl-c on the keyboard or click Edit->Paste). Now click Save. The conflict should be resolved!
Anyone with Editor abilities can edit any page. That means that you can edit what another person has written, and others can edit what you write. Just as you wouldn't want people to simply erase or WordNet:misrepresent what you have written, do not erase or misrepresent what others write. If you want to leave a message for someone, for example in their mailbox, respectfully leave the existing content alone, and add your message at the front or at the end.
Also, you may have noticed that you may log in with anyone's UserName. That means that you could make some edits, pretending to be someone else. Don't do it. EnglishWiki is not the space for fun and games. It is a space for cooperative language learning. If you feel the need to play a prank on someone, do it somewhere else. Log in as yourself, and log out before you leave the computer.
If I find out that you have WordNet:impersonated someone else, you will receive a 0 on the next Wiki-related homework assignment. If you do it again, you will receive a 0 for all Wiki-related homework assignments for the rest of the semester. To prevent this from happening ...
Always log out on the [Preferences] page when you are done using EnglishWiki. How do you log out? Delete your UserName and Administrator Password, then press Enter or click Save. Always log in on the [Preferences] page when you start using EnglishWiki. Always always always.
This is called EnglishWiki for a reason: its main purpose is to help you learn English. Everything you write should be in English. You may use the occasional Chinese word when asking a question, but don't forget that there are resources for finding out how to say what you want to say in English, right at your fingertips. See LookUp if you don't know what this means. If you want to communicate in Chinese, do it somewhere else.