谢谢你告诉我这个铃铛叫“Cow bell". 查了一下,“Cow bell”用在橄榄球比赛还有别的events上。下面是Amazon上的描述:
"Cow bell with Handle 7 inches and 11” Cowbell Beater Stick - Made of Steel - Antique Cow bells Noise Makers for Football Games, Sporting Events, Celebrating and More (Matte Black)"
她儿子为什么可能会生气?有什么典故吗?