Open the watermelon video and select "I" in the lower right corner.

Click "My Upload". (Or just click "Shoot" in the upper right corner)

Click on the camera in the lower right corner.

Click the play button.

Slide the video below, find the video to upload, and click "Continue".

Set the cover and title of the video, and then click Publish.

In this way, you can see that your video is in the "upload" state, waiting for the upload to be successful, and the upload will be completed after the approval.