In the anonymous evaluation system of the school, students may use some methods to leave negative comments while remaining anonymous. Here are some common methods: 1. **Use aliases or fictitious identities**: Use different names or identities in comments to avoid direct association with personal real information. 2. **Use the school's anonymous feedback mechanism**: If the school provides anonymous feedback forms or online evaluation systems, you can directly use these systems without leaving personal information. 3. **Group feedback**: Discuss and submit collective negative comments with other classmates, which can reduce the risk of individual identification. 4. **Vague description**: Use vague language or general questions in the evaluation, rather than targeting a specific event, so that it is not easy to trace back to individuals. 5. **Timing**: Choose to submit evaluations during school holidays or when the teacher is not available to reduce the possibility of being discovered. 6. **Diversify submission methods**: If the school allows multiple ways to submit opinions (such as paper, online, email, etc.), you can choose those methods that are more difficult to trace. It should be noted that although anonymous evaluations can help express opinions, they should also be used responsibly to ensure that the evaluation is based on facts rather than just personal emotions.