[誤] There was a large number of audience at the meeting.
[正] There was a large audience at the meeting.
注：audience 是集合名詞，為“觀眾”的總稱。所以“觀眾多”應説 a large audience，“觀眾少”則應説 a small audience。又如：An audience of millions watched the royal wedding on TV(百萬觀眾在電視上觀看皇家婚禮）。
