if fifty pence pieces are not exchanged for sweets,they rattle for months inside money boxes
问题描述：
if fifty pence pieces are not exchanged for sweets,they rattle for months inside money boxes
请问pieces在这什么意思
答
fifty pence:50 便士.英国的货币单位之一,是一种金属制作的钢镚.常用的钢镚有,2磅,1磅,50p(fifty pence),20p,10p,5p,2p 1p.
因为这些都是些小钢镚,所以被称为pieces
翻译为：如果50p 的这些钢镚不用来换糖果的话,他们就会在钱盒里 梆啷梆啷响几个月.