two sticks (697a) + (half) bamboo (321a) = prostrate

(Visiting the emperor, everyone is waiting in the antechamber) When the emperor approaches, a court official uses two sticks to beat loudly on a drum, “Bam! Bam!” — and everyone falls prostrate. (Notice that we’ve cheated here and used “bam” to stand for half of “bamboo”!) / [No pronunciation needed]