A rhythmic beat had begun to resonate in their lungs. At first it sounded 
like drumbeats, but as it drew closer it developed into the sound of hundreds 
or thousands of human voices chanting in unison: "Sha! Sha! Sha! 
Sha!" Nanjing Road began to vomit forth a great crowd of people shoved 
out onto the Bund like exhaust pushed out by a piston. They cleared out of the 
way, dispersing up and down the riverfront.