Lukegao1
创建页面，内容为“ To add a fade-in effect to your video or audio clip in iMovie, follow these steps: 1. Open iMovie and select the project where you want to add the fade-in effect. 2. Drag the video or audio clip to the timeline. 3. Click on the clip in the timeline to select it. 4. Click on the "Clip Filter and Audio Effects" button in the toolbar, which is represented by a circle icon with a star in the center. 5. Select the "Fade In" option from the menu that appears.…”