接可數名詞復數，表示什么中的一個，動詞用單數第三人稱。例如：This is one of the mistakes.這是其中的一個錯誤。This is one of my favourite records.這是我最喜歡的唱片之一。

one of的幾種用法

1.one of +代詞賓格或名詞復數

如：one of them

one of the students

2.one of 短語做主語，謂語動詞用單數

One of them is good at math.

3.one of +the+形容詞最高級+名詞復數

one of the longest rivers

one of例句

I bought one of the leading brands.

我買了幾個暢銷品牌中的一種。

I heard a playback of one of the tapes.

我聽到了其中一盤錄音帶的回放。

I had made arrangements for my affairs to be dealt with by one of my children

我已經安排我的一個孩子處理我的事務。

One of the bags was lost en route.

其中一個包在途中丟失了。

I think that is one of the major ingredients in his success.

我認為那是他成功的主要因素之一。