① more than a中的a指的是“一個(gè),任何一個(gè)”,表示的是類別。
He will stay here for more than a mouth. 他將在這里待一個(gè)多月。(超過(guò)30天)
② more than one中的one強(qiáng)調(diào)數(shù)量是“一個(gè)”,而不是“兩個(gè),三個(gè),四個(gè)”。
比較
It took her more than an hour to get there. 到達(dá)那里花了她一個(gè)多小時(shí)。(一個(gè)小時(shí)多一點(diǎn))
It took her more than one hour to get there. 到達(dá)那里花了她不止一個(gè)小時(shí)。(可能兩個(gè)小時(shí),三個(gè)小時(shí))
He has a sister who studies in Fudan University. 他有一個(gè)妹妹在復(fù)旦大學(xué)學(xué)習(xí)。(可能有幾個(gè)妹妹)
He has one sister who studies in Fudan University.(表示只有一個(gè)妹妹)