Place it at the start of the lesson reveal, then follow it with Bruh for the class reaction and Emotional Damage when the topic sinks in, keeping the announcement first so the reactions read as responses to it.
關於此聲音
This is a short meme clip built around the announcement of today's subject, running just under eight seconds. It gives listeners an awkward, knowing laugh, like a classroom moment landing a beat too seriously. The dry setup makes an ordinary school moment feel unexpectedly funny.