这是倒置导致的疑惑.原来的次序是a large audience.So之后经常发生倒置. 再问: large audiences 不对吗 再答: audience是一个集合名词,类似“一套丛书”,所以不用复数。police就是集合名词,不能说polices,如果非要说复数,也许就只好说policemen了。 再问: 那可不可以说 a large people/police 再答: people是person的复数形式之一。a large police可以使用,意为“大批警察”。例如: There was a large police presence at Southport Court for the appearance of a man accused of shooting a bikie.