the piece of metal inside a bell that hits the sides and makes the bell ring 钟锤；钟舌；铃舌
Idioms
like the clappers
- (British English, informal)
extremely fast 特别快；飞快；疾速 to run/ride/drive like the clappers 飞快地奔跑；骑马飞奔；驾车疾驰