If history is a group of voiceover actors who were later changed by Miao Oolong, there are the following situations:

1, artistic creation adjustment: In the process of animation or film production, artistic creation adjustment will occur, including changes in characters, styles or story lines.

2. Cooperation between artists: Sometimes, there are communication or cooperation problems between directors, producers or production teams and voice actors, which will lead to the replacement of actors.

3. Technology or industry progress: With the continuous progress of technology and industry, the production team will consider re-dubbing to obtain higher quality sound effects.