Just then, a siren went off - an ambulance, a cop car, or maybe a fire engine, mixing with the usual downtown racket - a cable car bell and a street musician playing Christmas carols on a sax.

• 就在那时；一声警笛声响起-一辆救护车；一辆警车；或也许一辆救火车；和通常的商业区嘈杂声相混合-一辆缆车鸣钟和在一萨克斯管上演奏耶诞颂歌的一名街头音乐家.