1, Tik Tok is a creative and diverse video sharing platform, which allows users to freely publish and share various contents, including couples' dance teaching courses. This makes Tik Tok a place where people who like duet show and share their skills and inspiration.

2. Couple dance can be used as a way of interaction and entertainment between couples to increase intimacy and happiness. Tik Tok's duet course can meet the needs of users to learn and share duet, and provide a platform for seeking inspiration and learning.