he told me i would receive an extra thousand pounds a year中的an表示一个

问题描述:

he told me i would receive an extra thousand pounds a year中的an表示一个
pounds为什么还要要加s?一千不是一吗?

2个以上就得加S.何况一千呢,一千虽然有一,但也是复数
AN是一份额外的意思.后面的钱数还是得加复数的S
比如another three years 也得加S