eager前用a還是an

eager前不用a而是an。因為eager是以元音開頭的單詞，所以用an。eager中文意思是adj. 熱切的，渴望的，渴求的

The company is an eager one to gain a foothold in Europe.這家公司急於在歐洲取得一席之地。

He was as eager as his Captain to beat the record.他和他的隊長一樣渴望打破紀錄。