1. Search online for lyrics related to songs (please don't choose those with time), then open iTunes, right-click the song title to add lyrics, and click Show Introduction.
2. Then the following pop-up window will pop up, and click the lyrics label option. Copy and paste the lyrics into the blank box below, and then click on the lower right corner.
3. Sync songs with iPhone and other iOS devices through iTunes, import songs into iOS devices, and then open the built-in music application. When playing this song, click the music cover with your finger to show the lyrics, and then click it to hide the lyrics.
Note: In this method of adding lyrics, the added lyrics will not scroll with the song when the music is played, and can only be viewed manually.