The phrase means the ceremony begins in Mandarin, and short clips like this circulate online as ready-made openers for formal occasions rather than as excerpts from a single well-known film or show. Because the wording is generic and instantly understood by Mandarin speakers, creators reuse it whenever they need a dignified start without recording their own announcement. Its brevity makes it easy to drop into wedding films, graduation edits, school events and conference videos, where a clear spoken cue sets the tone far more effectively than a title card alone.