Why are there classes, names and entries at the beginning of the video?

To include categories, names and entries at the beginning of a video, you can use the following methods:

1. Introduce yourself: At the beginning of the video, clearly introduce your class, name and entries. This can be a short sentence, such as: "I am XXX in class XX, and my entry is XX." This can quickly convey the necessary information.

2. Text title: Add a text title at the beginning of the video, including your class, name and entries. This can be done through video editing software or online tools, such as adding titles using the subtitle function.

3. Image or logo: Make an image or logo containing your class, name and entries, and display the image or logo at the beginning of the video. This can be a simple icon or photo with your class, name and entries on it.

4. Video clip: Use a short video clip at the beginning of the video, including your performance in class or competition. This clip can be related to your entry, or it can be related to the event clip you participated in.

No matter which way you choose, make sure that the information is concise and clear, so that the audience can quickly understand your identity and events.